CLASS-10 ,12 physics chapter -1 प्रकाश का परावर्तन ( reflection of light) part- 01

[00:01:53]Hello friends, welcome to this lovely Sa YouTube Channel GPR Online Top I hope how are you all in your classes?

[00:02:00]I hope you will be happy, healthy and You must be preparing for the exam. So Today, after finally feeling a little better, We are starting class. He is also the most A great class that you have.

[00:02:16]Highest marks in class 10 and 12 The chapter asked is named Reflection of light. Whose name is Prakash Reflection of.

[00:02:28]Whose name is reflection of light. to whom In English we call it reflection.

[00:02:33]Off light. Reflection of Light in which today we People will know what a convex-concave mirror is.

[00:02:40]and how it changes and how Are its images formed? all of them Things will be discussed today. Ok? At once We will talk in detail about any number that Be it board exams or classes Be it class 10th or class 12th or In competitive exams, you can study as much Physics as you want.

[00:02:59]Questions are asked from all the chapters.

[00:03:02]The bottom line is here, we're going to start today.

[00:03:05]Are. Ok? So once all the children first Will tell you whether the audio or video is clear Not there. After that we will start There are.

[00:03:28]All the children and their loved ones will like it once.

[00:03:30]Will share it with my friends also.

[00:03:52]All the children should join live quickly.

[00:05:26]Namaste Namaste Rocky Lakshmi Good Evening Good evening, little one Good evening So today, after some time, when things get better, we Finally about to start.

[00:05:42]Once everyone went to their friends' place Please do share it as well. Ok?

[00:05:47]So let's start with physics.

[00:05:50]Without delay, the one whose name you have Reflection of light. reflection of light That is, what we call light Change. Change of light. this chapter More than in board exams Asking questions and even forming questions It is more important who is what Who is who and how, everything about them Today we will discuss these things completely.

[00:06:16]as detailed as you can be There are also image graphs for all of them.

[00:06:21]If we are going to discuss about it today, then one Once all the children first talk to their friends Will share it with others also. first things first These are us science students. Science So the first thing that comes to mind is science.

[00:06:34]What is? First of all, this is where the issue gets stuck.

[00:06:37]Brother, what is science and what is science?

[00:06:40]How do we see it and how do we see it all?

[00:06:43]Let's deal with the question. So first of all I will give you a little basic introduction.

[00:06:47]Let me tell you about science. Because What is science? In science Questions are asked from various topics Are? It is also important to know this. So What is science?

[00:06:59]Science is the first thing. So I write here what science is Is it something? Okay, right? First of all, brother What is science? The science which we People say science in English. children who studies science but science The definition is not known. about science I don't know their essence What is science? So let me tell you What is science? So in which we By proving and using any knowledge Whatever knowledge we acquire by experimenting What do we call that which reflects this?

[00:07:37]Science says. what do we call him Are? Science says. That is, using are, see, observe, recognize Are. Know about its merits and demerits Are. What do we call that?

[00:07:47]Science says. So let's talk here too Brother, what is science? So Let me tell you what science is.

[00:07:55]So be careful Caution, do you understand caution without any meaning?

[00:08:02]careful to a fault carefully sorted sequential meaning happens in a continuous sequence sorted in sequential ways in sequential ways From triangles made from triangles made from triangles experiments conducted The experiments carried out and Experiments and observations made observations Experiments and observations made by observations by observations to the knowledge gained to the knowledge gained The knowledge gained is called science.

[00:09:02]What is the knowledge gained called? Science They say. Science says. That means this also I understood that brother, whatever we Whatever knowledge is acquired in a systematic manner that is, carefully and cautiously Do you understand? Be careful first thing systematic experiments because Whatever we study in science, we do it without We do not read the experiments that were done. Who Even if we study science, without I don't read it for practical purposes. So that means Carefully sorted. sort of Meaning, a word has come to you here.

[00:09:37]Sorted. means sequentially Continuous What does sequential mean?

[00:09:41]Continuous If someone asks the meaning of sequential What will you tell me? Continuous i.e Observations made using continuous methods You all understand the experiment, whatever it is What you do in the lab is an experiment And whatever you investigate, What do we say? It is called observation.

[00:09:57]What do you say? It is called observation. so the same It is written that caution should be exercised systematic experiments and knowledge gained through observation What is it called? Science says. What They say? Science says. according to me From here onwards, the matter will be clear to all the children.

[00:10:12]What is that science? tell me once We will give it to all the children, it is clear, isn't it?

[00:10:16]What is called science? Isn't it? Science They say. Brother, I understood this. Now brother The topic here is about types of science.

[00:10:25]Science. Science has made us aware that Brother, there is science. So remember that Observing the science. science which Science is for many children Many teachers have wrong things in their minds.

[00:10:40]misteach the types of science What is it? very into the type of science All the children misread that.

[00:10:48]The types of science that are done by the mind Those people turn out to be wrong. So remember There are only two types of science There are. How many types of science are there Are? So there are only two types of science.

[00:11:02]Are. You have one Physics science.

[00:11:08]One thing you have is physics.

[00:11:12]There are only two types of science. Ok No? One is that you have physics.

[00:11:18]And one of them is biology. creatures Science.

[00:11:24]One is you have physics and one is You have biology. Science There are only two types of totals. one would have been you have physics, there is a You have biology. Okay, right? If any I ask you how many types of science are there?

[00:11:38]What are they made of? So there are only two types of science.

[00:11:41]There are. One is you have physics Science, you have a living being Science. Now here comes the matter brother Physics is the science which is two There are types. They were of two types Are. Ok? in which we say a It is physical.

[00:11:58]One is that you have physical One is physical physics You have a physics one happens you have chemistry Do you have chemicals?

[00:12:16]One is you have the chemistry right.

[00:12:20]Neither do you have chemistry So what does it mean to say that physics There are two types of science, one is You have two types of physics.

[00:12:30]There are. One is physics, one There is chemistry. Ok? And here But if the same thing is said here then the living being You have only two types of science.

[00:12:40]Are. One thing you have is zoology.

[00:12:44]One thing you have is zoology.

[00:12:48]You have zoology and you have You have biology. what would have happened Is? One is you have biology. One you have zoology, you have a You have biology. This type of Types of sciences line by line is divided into sequences. In this way these The sciences in line by line order It has been distributed that science brother, look very All children read people's mistakes or The teachers teach them that Science understands that there are three types of There are. what does a quick child do It says that there are three types of science There are. The child knows only one thing. Here But the first one will know if you have a master The teacher explains physics.

[00:13:30]And let me tell you that you have biology.

[00:13:35]Let me tell you that you have biology and There comes a third one and they say that he chemistry chemistry but main You can see where the story comes from.

[00:13:47]You will see it on the screen in front of you.

[00:13:50]These must have been children in the science genre.

[00:13:53]If people were misled then this is science There are. But what are these sheer things?

[00:13:57]This is wrong. These are not three types of science.

[00:14:00]Would have been. These are the types of science There are not three of them. Okay, right? These It is completely wrong. of science There are not three types. Types of science There are only two. And both have two branches each.

[00:14:12]which we will read about further Are. Ok? So physics here.

[00:14:17]What happened here? Chemistry. These That's it, zoology is done and that's it for you.

[00:14:21]Near. Good biology not botany I wrote science wrong. biology No, there is vegetation here brother.

[00:14:28]Science.

[00:14:30]Botany Botany. Okay, right? no mistake Will read. A mistake was made. I will write here I'm sorry. Vegetation grew here Science. This is how we read.

[00:14:45]Ok? It's clear here in my opinion All children will have it. That is, one thing A bell rang in my mind that brother, science There is science, isn't it?

[00:14:54]Types of science of science Type What does it mean to say types of science?

[00:15:05]Happened? Types of Science Off Kinds of Science. Kinds of Science. Correct Isn't it? Kinds of Science. That is, science How many types are there? Once upon a time, all the children I will tell you if I understand You all must be understanding if you understand If you are coming, please give it a like.

[00:15:29]I will definitely like the video And if everyone shares it here brother How many types of science are there here?

[00:15:36]It is about science, isn't it?

[00:15:40]There are only two types. Science How many types are there? So two types Are made of. There are mainly two types of science There are.

[00:15:50]How many main types of science are there?

[00:15:52]There are two types. there were two types Are. How many main types of science are there?

[00:15:59]Are there? So there are two types. First Whatever happened in front of you, the first thing that happened You have Physics.

[00:16:11]Physics Physics science. The first one is done You have Physics and whatever else There you have it, biology. Who Have you got some science? So you will say that biology. The first one is done You have Physics and whatever else There you have it, biology. Correct Isn't it? Now here comes the matter brother See How many types of science are there? So say two Types. Who is one? One has become your Pass Physics and you have one.

[00:16:57]biology.

[00:16:59]Okay, right? You have one physics Science, you have one, biology.

[00:17:04]Now here comes the question that brother physics What is science? Okay, right? What It comes down to what physics is.

[00:17:12]Is? So let's talk about physics.

[00:17:14]Do you know what physics is?

[00:17:17]The next topic you have is Physics.

[00:17:22]Physics science. Okay, right? Physics Science. What is physics science? talk Do you know what is physics science? Is No? What is Physics Science? Physics Science. So such science like that Science the science in which in which we in which we in which we inanimate non-living matter non-living matter non-living matter and related to it and from that Connected and related to it events and related events Study and the study of related phenomena Study Study We do.

[00:18:58]does it to him It is called physics. what does he They say? It is called physics. Him It is called physics. This thing came It gets stuck here that brother, whom we of or relating to inanimate objects study related events Are. What do we call that? Physics Science says. What is that called?

[00:19:27]It is called physics. Okay, right?

[00:19:30]Is everyone understanding? him we What are people saying? Physics says Are. When you learn here that physics is a science What is it? about physics too I got to know. So now here comes the matter brother On types of physics. Physical Types of science Isn't it a type of physics?

[00:19:53]Physics of science Types of physics Types of physics science. So remember that There are mainly two types of physics There are. how many types of physics Of? Two types. Okay, right?

[00:20:14]I will write it here. Physics Science Two Types.

[00:20:19]Physical Science There are mainly two types.

[00:20:28]mainly There are two types. two types two types There are. How many types are there? Two There are types. First First Physics became the first here.

[00:20:52]Physics became the first here.

[00:20:56]First you have Physics. And The second thing that happened here was chemistry.

[00:21:03]The second one happened, what happened here? Chemistry.

[00:21:07]Chemistry.

[00:24:16]I told you here that physics There are two types of science. Physical How many types of science are there? Two types.

[00:24:24]The first thing that happened is physical.

[00:24:26]Science. It's physical with you Science.

[00:24:31]physics and the other thing that happened is What do you have in chemistry?

[00:24:40]Here comes the matter of chemistry People read about physical The science we're going to start today Chapter number to chapter number in Physics Two, those who are going to start, start in this are going to do tuition will be charged Yes, all the batches will start from tomorrow. small You can be rest assured about this. All from yesterday Batches will be taken.

[00:25:08]All batches will start from tomorrow. Ok? from tomorrow All batches will be applied. You can be rest assured that For. So let's get to the point here, brother.

[00:25:17]Physics science. about physics I got to know. Now a little bit of biology Let us know about it. what we have in physics Learn about science. a little bit now know about biology that organisms Is it science?

[00:25:30]here Here comes the matter of biology, brother.

[00:25:35]about. Who is it about? creatures Science.

[00:25:40]biology.

[00:25:44]Okay, right? biology.

[00:25:46]Ok? What is biology?

[00:25:49]such science such science the science in which in which we in which we live in which we live In which we consider living beings, right?

[00:26:12]What animals do you need brother, in which you have Horse, elephant, bull, donkey, pig, all these All the animals, plants and trees that come What do we call everyone? living organisms. So in which we are living beings fauna and fauna and after that animals and And living creatures. Which creature? living creatures.

[00:26:40]about living beings about living beings about Let's study about it. Study Study We do.

[00:26:59]Let's study him It is called biology. living things What do we say about him?

[00:27:08]It's called biology. what is he called?

[00:27:11]It's called biology. Okay, right? creatures Science says. So many things to me You must have understood that brother, biology What is it called? in which we are living beings and the study of living things We do. What do we call that?

[00:27:27]It's called biology. So here comes the matter Bhaiya, I have understood the biology that living beings What is science? So biology that you were talking about the type of Biology is a biology It is a separate part of science.

[00:27:48]Okay, right? That is a different part.

[00:27:52]Let us learn about biology.

[00:27:54]What are the types of biology? Correct Is?

[00:27:58]Types of biology of biology types of biology although we people I'm going to study physics here, but A little basic introduction to science It is also important to know what happens. Ok No? Biology [sound of clearing throat] Types of Biology Types of Organisms Science biology biology mainly There are mainly two types of biology Are. How many types are there? So two types of There are two types. how many types Are there? There are two types. First First, what are the two types? First There you have it, zoology. Creature Science which you further in BS Notes Please read it. zoology and other What happens is what you have vegetation vegetation Which science would you say?

[00:29:05]Botany is fine, isn't it, how many sciences?

[00:29:09]If there are two types of science, then there are only two types of science.

[00:29:11]There are different types, pay attention here what I explained here here here Explained that there are only two sciences There are types. You have one Physical science. There are two types of science Physics is one of biology.

[00:29:25]Okay, right? And who has physics here?

[00:29:28]They say? So the science in which we Inanimate objects and related phenomena What is the study of what is called?

[00:29:34]How many physical sciences and physics What are the types? So remember the physical There are mainly two types of science.

[00:29:41]There are. Who all? You have one Physics. You have a chemical ethology. The same thing happens here too Brother, how many types of biology are there?

[00:29:51]Are there or what is biology called?

[00:29:53]First let's talk about biology here.

[00:29:55]There are types. How many biology What are the types? So say two There are types. Who all? biology What are the two types of?

[00:30:04]First of all, what is biology called? So he The science in which we study animals and living things The term living being means living thing or living thing Study about animals. same What do we call this? biology.

[00:30:15]That is to say, in which living beings, Animals like horse, bull, cow, buffalo, Elephant. Okay, right? study about them We do. what do we call that near you? biology. Ok? creatures How many types of science are there? So two There are types. Who all? There happens to be one zoology, one is botany Science. Now here comes the matter, brother.

[00:30:35]Let me tell you that in zoology it We people in which we know about animals studies. In zoology What do you study about? remember What do we learn about in zoology?

[00:30:45]studies? So about the animals studies. About whom? So living organisms Study about animals.

[00:30:53]Okay, right? This is what living beings have botany what is a plant Is? Trees and plants in which we are the trees and plants Because you also have trees and plants It is a living substance. Okay, right? living creatures Are. So about trees and plants Study about plants and trees.

[00:31:12]So this is how our science would be Isn't it, it moves forward. Ok?

[00:31:18]Whatever science is, what will happen in the future?

[00:31:20]Is? Increases. Ok? I understand the point Isn't it?

[00:31:29]Quickly, the power is getting cut a bit today.

[00:31:31]Quickly.

[00:31:33]Well, we can't do anything about it.

[00:31:36]Light that is not in your hands.

[00:32:54]We Let's move ahead. A little light every now and then It is also being cut today.

[00:33:25]Did you also know what is science?

[00:33:28]Types of science.

[00:35:00]Let's move ahead. Look, know so many things If you go, you will know a little about science.

[00:35:06]are and I am getting stuck.

[00:35:35]Let us go So we are finally out of here.

[00:35:42]Physics is about to start about. Ok? So all the children have their own Will share it with friends also. Physics What are we going to study in science?

[00:35:50]So let us see the name of the chapter here.

[00:35:52]The first chapter is called You Have the First The name of the chapter is You have light Enforcement. What is the name? of light Enforcement. which we are going to start today are the emanations of light. Okay, right?

[00:36:04]Enforcement of light. Ok? So let's see There is reflection of light here. Look, it was written The light has changed. The first thing that What is light? Know the thing here All children need light What is it? What is light? Firstly It is important to understand what light is?

[00:36:22]So let us first write.

[00:36:24]Let's put a heading about light.

[00:36:27]Light.

[00:36:29]Prakash, which we call in English Do you speak? light. What do you say? light.

[00:36:34]Ok?

[00:36:57]We We Let's first things first that we know about light What is light? First thing is light What is Prakash Light?

[00:37:41]Light. We call Prakash in English Light says. Then we will know that What is the change of light? Ok No? First of all, light. You guys understand What is? that anyone like the light of a mobile phone whether it is the light of a flash by which What can we do with something easily?

[00:37:58]Can you? You can see. what is that called Are? light. Now it seems as if this light does not remain on.

[00:38:03]The light does not stay on. So can we see you?

[00:38:04]Can you find? What? Can't see. you see me Can you find? Can't see. I don't even you I could see. You can't even see me.

[00:38:11]That means we see any object in the world Can't find it. Because there is no light, a There will be no reflexing from the other. and when If there is no reflection then the object will be visible to us.

[00:38:21]Will not give. That means what is called light brother?

[00:38:23]What is light? So light is a machine Is. What is the light one? It is a machine. Light what is an? It is a machine. That means to say that What is a type of light? It is a machine.

[00:38:33]What is the light one? It is a machine. whose What can we do with the help of something?

[00:38:37]Are? see with the help of which we What do you do to the object? Let's see. So The definition of light comes here brother What is the definition of light? Light.

[00:38:47]So light is such a device.

[00:38:50]the light that is Light is one such instrument. Light is such a It is a machine. a device with the help of which Help whose help with the help of which we We Any object that helps from we someone we someone We can easily get hold of an object From We can easily find something Can be seen easily. What can be done?

[00:39:37]You can see. You can see. what can you do Are? You can see. What do we do to that?

[00:39:45]They say? Prakash says. him we the people What do you say? Prakash says. to the same What can we see? him him light They say. what is he called? Light. Him Prakash says.

[00:40:01]what is he called? Prakash says. So much So it became clear that brother What is light? that is, with the help of We can easily see an object.

[00:40:12]What do we call that? Prakash says Are. What do we call that? Light They say. Okay, right? what do we do to him They say? Prakash says. so many things You must have understood that with the help of which we You can see any object easily. Him What do we say? Prakash says.

[00:40:28]Brother, I came to know about Prakash. Now we People came to know about light. So brother What does it mean to say that light is everything No light comes out from it. from every object No light comes out. Okay, right? every Light does not emanate from the object. So Bhaiya means that the light which was They come from only two types of things Are. How many types of objects can light pass through?

[00:40:51]Does it come out? So, from two types of things It comes out. One minute.

[00:41:11]Let's see here. So look at the rise are in the chapter. So what is light?

[00:41:17]So light is a device that helps We can see any object easily Are. What can we call him? Light Can say. What can I say? Light.

[00:41:25]Now like this mobile phone that I have, Pass as light to show you right now There is a flashlight for this. What is? Flash light.

[00:41:32]This flashlight is still on. It is burning Is. If I turn off this light and I By turning off this light If by turning off this light If I hit myself in the face like this If you see your flash, you can see my flash.

[00:41:45]Isn't it happening? means you can see the light Is. You can see my face.

[00:41:50]That means you can see the flash. so this is What is it? This is the light. what is this thing Is? There is light. What is this thing? Light Is. Okay, right? That is to say what it means It so happens that light is a device whose What can we do with the help of something?

[00:42:03]Are? You can see. with the help of which a What can we do to the object? can see Are. So that means you have two type of object. One assumes this Marker happened. Let's assume that the mobile Flashed. Now I mean to say that light from this It comes out. But is this from the marker?

[00:42:18]Does light come out? So you will say that No. That is, what does it mean to say that this Light comes out and it does not give off light It comes out. So brother, both these things What should I say? So the light comes out or Do not go out on these two types of things It depends. You have one Illuminated objects are one you have Unloved things. Listen to me carefully.

[00:42:40]Because you people are studying science, so sense It is necessary to apply it. If you don't make sense then Then you will not be able to answer. Then you You will have to remember things. That means there is one Illuminated objects are one you have There is no single non-luminous object Illuminated objects are one you have Non-luminous objects are fine, the light which would There is one light that comes out, there is one light Illuminated objects near you You have a luminous object luminous objects or luminous objects That is, what does it mean to say that What are luminous objects that Light should come out from which light should come out Now, like the light coming out of the tabletop Mobile phone emits light from the sun It comes out, doesn't it? It comes out of the brick.

[00:43:28]What comes out of stone or paper?

[00:43:30]What comes out is not the lightest.

[00:43:32]It turns out that what is meant by saying that What do we do to the one from whom light emanates?

[00:43:37]It is said that there are luminous objects here.

[00:43:40]But the question comes brother, what are the illuminated objects?

[00:43:42]thing is illuminated things okay illuminated objects illuminated objects luminous objects such such a thing the thing from which from whom from which light from which light is emitted from which light is emitted light is emitted or radiated Light is emitted. happens or It comes out. Okay, right? occurs or comes out Is. It comes out. Ok? turns out to be her It is called light. what is he called We people? It is called light. That is, those from whom What does light become? is emitted It is there or it comes out. what do we call that Are? Prakash says. Now here comes the matter That brother Prakash, whatever he came to know, he became Pradeep Things that emit light You have what we call that luminous objects that give off light It comes out in this for example For example, you will see the matter in example As you would say, brother, from the sun It is true that light comes from the sun.

[00:45:07]Light comes out if you have the moon There is light from the moon too, you must be seeing the moon It also comes from. The lantern is done. lantern Done. The lantern is done. The torch is gone.

[00:45:22]The torch is gone. The torch became a torch. light Done.

[00:45:28]The light became light. What comes out of all this Is? Light comes out. What of all this Does it come out? Light. once all the children If you understand then once in the chat box Say yes.

[00:45:40]Once all the children understand What? Once you say yes in the chat box, Did you understand the illuminated objects or not?

[00:45:47]As far as I understand, all people understood about the illuminated object What are the luminous objects? When If you know about the illuminated object then the matter It comes brother, the matter comes here.

[00:46:00]About the unilluminated. about whom The question arises as to what are non-luminous objects?

[00:46:05]Is? The next topic you have is Aprapit Objects. about the illuminated object People came to know all the children. So next is your Near non-luminous object. What is? Non-luminous objects. Correct Isn't it? I just mentioned that such a thing That which emits light is called luminous It is called objects. such an object from which We call that which does not emit light.

[00:46:29]What do you say? You have non-luminous It is called objects. What do you say?

[00:46:33]They are called non-luminous objects. Okay, right?

[00:46:37]That is, that which emits light Illuminated objects. and from which light What do we call that which is not emitted?

[00:46:43]People? Non-luminous objects. What do you say?

[00:46:46]Non-luminous objects. So the same here Definition means something like that like that objects from which such an object from which from which light from which light is emitted from which light is emitted from which light is emitted no, it doesn't happen, it doesn't happen, it doesn't happen it would have happened to him him unlit What do we call it? Non-illuminated They are called non-luminous objects. what does he They say? non-luminous objects It is called objects.

[00:47:39]They say. They are called non-luminous objects.

[00:47:42]that is, an object that emits light He should have luminous objects and such things which It does not emit light and is called non-luminous Objects. Irfan Ansari Good evening. Good Evening Chotu.

[00:47:56]Good evening. Good evening to all the children.

[00:47:58]Good evening. Tomorrow from all the children, from tomorrow all There will be a class for children.

[00:48:05]Tomorrow all the children will have classes. Ok?

[00:48:09]All the children will be present tomorrow. Tomorrow all the children A class will be held with you.

[00:48:15]Ok?

[00:48:16]All the children will like it once. Like it I will give it brother. Why be stingy in liking?

[00:48:23]had been? They are called non-luminous objects. Here But the point came that non-luminous objects are called Are. For example, you can say Brother, paper. Now there is no light from the paper.

[00:48:33]It comes out. So it became paper, it became brick.

[00:48:38]You have a brick, you have a stone.

[00:48:42]Brick became stone, okay brick stone wood Wood, all these things emit light If it is not there then what are all these things?

[00:48:54]You have all the non-luminous objects what are the things you have called What are non-luminous objects called?

[00:49:02]you have non-luminous objects okay I As far as I understand, all children It will be clear. about non-luminous objects I got to know.

[00:49:12]Now comes the matter of brother Apradeept.

[00:49:15]I got to know.

[00:49:17]After Apradeep, it is time for things to happen brother.

[00:49:20]Like we bring out light.

[00:49:23]If you emit light, then whatever you see from there What does it mean to say carefully?

[00:49:42]Like what does it mean to say that?

[00:49:48]Assume that one There is a body. There is some object.

[00:49:56]in this object Now what is this thing? I also tell you this Let me tell you that this item There is sunlight. This object is from the Sun It is a sphere. What is this thing? of the sun It is a sphere.

[00:50:51]This thing that is visible is a sun.

[00:50:53]Guess what this is? There is sun. Now What's next from here? by the light of this sun This is the sun. Ok? what about this sun It is happening that the light which is coming out rays are coming out like this, okay Neither do thousands of rays emanate from the sun This light that is coming out here By the way, let's say the Earth is here.

[00:51:17]what is it, this is the earth, right, what is here There is earth and what is happening on earth?

[00:51:22]If it is coming then it is coming in a straight line These rays, what are these rays called?

[00:51:29]This thing that is visible nearby is called it's called what you have ray It is called a ray, that is, travel in a straight line This light is good for the one who gives light This is all there is, whatever it is, all of it together You are seeing it right now near you.

[00:51:46]What is falling on the earth?

[00:51:48]Prakash, what is that light falling?

[00:51:51]Whatever light you have, come here.

[00:51:54]What are all these things?

[00:51:56]There is light that shows what is happening on Earth.

[00:51:58]What is happening on earth? fall Has been. Isn't it? So brother, here we are talking What is that ray? what is ray ray Is? Kiran Know about Kiran.

[00:52:11]The next topic you have is Kiran. What is?

[00:52:14]Ray.

[00:52:16]Ray. Okay, right? That means what is a ray?

[00:52:20]Ray. That is, what does it mean to say that straight in line straight in a straight line straight in a straight line movement in line departure those who do those who travel in a straight line light traveling in a straight line to the light Light is called a ray. in a straight line What is traveling light called?

[00:52:55]Kiran says. That is, what does it mean to say It so happens that the ray is in a straight line.

[00:53:01]She goes away. How does she go brother? So You can say that it moves in a straight line. Is No? So those traveling in a straight line What is light called? Kiran says.

[00:53:10]That means this is what you must be seeing.

[00:53:15]What you see here is this, What is this thing? Ray. This is visible Is. What is this ray? It is a ray. This too What do you have? It is Kiran. what is this too near you? It is Kiran. Isn't it? all these What are objects? It is Kiran. What all of this says Can you say what all these are? All these rays Is. What is all this? It is Kiran. Okay, right?

[00:53:43]What is all this? It is Kiran. As much as it is now What you see on the screen in front of you This is red in colour, so the light which is red in colour She goes, what is all this? What is all this?

[00:53:53]It is Kiran. What is all this? It is Kiran. Ok No?

[00:53:58]What is it all about is that you have a ray.

[00:54:01]So let us understand about Kiran also that Brother, what is Kiran? So in a straight line What do we call the light that travels?

[00:54:08]They say? Kiran says. What do you say?

[00:54:11]Kiran says. one who travels in a straight line What do we call the light that is Are? Kiran says. So many things about I must have understood that brother Kiran What is it? means to travel in a straight line What is the light called? Kiran says Are. What do you say? Kiran says. When If you understand about Kiran then call me brother What does it mean that one has passed away? be careful Keep listening to me. One that passed away So you have what's called a ray. one that passed away She came to you called Kiran. One who passed by What did you have to say? one of light The lining that passes through you is called a ray.

[00:54:49]Is. But brother, there are thousands of lining there.

[00:54:52]It is passing by. Thousands of things are passing by.

[00:54:54]It is passing from here to there like this. So that Not all things will be called rays right now. They Not all things will be called rays. That means he What will it be called? It will be called a beam of rays. Correct Isn't it? That means many rays that pass through What is there will not be called a ray. That what Will it be called? Beam of light. What will she be called?

[00:55:12]It will be called a beam of light. What will it be called? Ray Bunch. All the children will tell. that which will pass What will that be called? beam of light with you Will be called. What will it be called? Beam of light. Ray Bunch. Okay, right? What will that be called? Ray Bunch. Now what is the beam here? Correct Isn't it? So what does it mean to say that Groups of rays of light. Whose? Light Of rays of light rays of light The entire group of rays is divided into the entire group of rays.

[00:55:51]to the whole group to the whole group to the whole group The beam of light is called a bower. Light Of of light beam of light The beam of light is called a beam. Light is called a beam of light. That is, the light All the groups that you have What about all those rays of light that are groups They say? It is called a beam of light.

[00:56:25]What do you say? A beam of light. Now What does it mean to say that you have light?

[00:56:30]which are beams of light You have two beams of rays.

[00:56:37]There are three types of diagrams. How Are there? One who happens to be one that looks like this I showed it. What happened from a point What is going on outside? He is running away. One What is happening beyond the point? running away Is. Now what happened in that Let's say it was this one point. Now here Many rays came out from it. Okay, right?

[00:57:43]Understand carefully. And then there's this point Where all types of rays happened?

[00:57:51]come What happened after coming? Found it.

[00:57:59]Where rays come to every type of point What happened? Found it.

[00:58:09]What happened to all types of rays? come here But found it.

[00:58:17]Okay, right?

[00:58:21]What will each type of rays be? come over here Found it. Look, two conditions are being created here.

[00:58:25]Running away from a point. one point I am getting it by going to the place. and one who is the third who is The condition will be that third ray of light which The condition will be absolutely straight.

[00:58:37]in line It's in a straight line It appears to be in a straight line like this, right?

[00:59:04]This happened to everyone in three ways in a straight line.

[00:59:07]You have a situation here You are facing three types of situations.

[00:59:14]One of the things that is happening is that you have a ray of light.

[00:59:16]running away from a point What a situation is being created that a single point But I am coming and meeting you. Three types of your Situations are developing nearby. Isn't it? How many?

[00:59:26]Types? Three types. Now these three Types of names are Bhaiya. So its name is You have a diverging beam. Who is it?

[00:59:35]Divergent.

[00:59:38]Divergent beam.

[00:59:41]Beam of light.

[00:59:44]There you have it, a diverging beam. here What you see is your brother.

[00:59:52]He appears to be converging What is visible is a convergent beam of light.

[00:59:59]Convergent beam is correct, isn't it, what you see giving rays in it what is that a well of all these lines parallel to each other These are the faces towards this side, these are the faces of the lines.

[01:00:12]It's this way, right? There are no children in it.

[01:00:15]He will not think that he is falling here. This part which You are seeing this, right? this is It is clearly visible here, isn't it? This is clear It is visible right here. Ok? This is clear Running towards that side. So this is what happened to you Near divergent. These are the convergents you have.

[01:00:30]And what are the rays from both sides in this? One go from one side to the other or from this side to that It doesn't matter. Both of these all What are the rays to each other? is parallel.

[01:00:41]So what do we call this? parallel Beam. What do you say? parallel What is a parallel beam? parallel Beam of light. Okay, right? This is parallel Beam of light. Ok? I understand so many things What is happening? What is this thing? parallel Beam of light. Okay, right? You have this Parallel beam. That means you have a total There are three types of beams. One you just have divergent divergent The beam is a convergent beam One is you have a parallel beam.

[01:01:19]Now look at this, there is no need to memorize the definition.

[01:01:22]There is need. [sound of clearing throat] here But if you understand the bare words, you will understand.

[01:01:25]Here we are talking about brother divergent rays.

[01:01:27]What is called a cluster? divergent means similar beam of rays from a single point What happens when it comes out? It spreads.

[01:01:34]What do we call that? divergent Beam.

[01:01:38]What is a divergent beam that such a beam What happens when you leave a point Is? It spreads. That's what we call people Beam. How many types of beams are there?

[01:01:47]It must be visible to all the children that Brother, how many types of beams are there here?

[01:01:52]Can you see it? So here you will say that They became one of a kind. There are two types of And here we see three types of beams.

[01:01:59]Is giving. So once all the kids chat box I will write how many types of beams there are.

[01:02:04]There are. Now here comes the matter that Types of beams. Types of beams Will look carefully. The next topic is The type of beam you have.

[01:02:18]Ray Types of aggregates.

[01:02:23]Types of beams. Okay, right? Ray Types of aggregates. So what does it mean to say that How many types of beams are there? So There are two or three types of beams.

[01:02:36]beam of light The beam is mainly There are mainly three types. How many?

[01:02:47]What are the types? Three types.

[01:02:51]There are three types.

[01:02:54]There are three types. Okay, right? How many?

[01:02:57]Types? There are three types. First The first one has come to you brother, the divergent Beam.

[01:03:07]divergent divergent beam of light Divergent beam Which beam of rays is the same or the different?

[01:03:26]beam Now here is the divergent beam Who is called Bhaiya Apsari, I just now It is shown here through a diagram that What is called a divergent beam?

[01:03:37]Here I have explained that a divergent beam What is it called? So you will say that such a ray mass that spreads out from a single point What do we call that? Divergent beam Bunch. Okay, right? what do we call that Are? Divergent beam.

[01:03:53]Divergent beam. So what is the definition Did it come to you? that such a beam of light such a beam a beam of light in which in which light in which light in which light Any from a point in which light comes from a point coming out It should come out and spread. What will happen after coming out Should I go? It should spread. It should come out and spread.

[01:04:41]let it spread divergent from him It is called a divergent beam Ray beam of light It is called a beam of light. what do we call him People? It is called a divergent beam. divergent from him It is called a beam of light. What do you say?

[01:05:09]It is called a divergent beam of light. that is, like that A beam of light from a single point What will happen after coming out? It should spread. That is what we What are people saying? Divergent beam. same What do we call this? Divergent beam Bunch.

[01:05:27]What do we call him? Divergent beam Bunch. in which light comes from a single point What happens after it comes out? It spreads.

[01:05:33]I just took you through the diagram.

[01:05:35]Told that suppose someone from here The point is. What's next from here? a point Is. And what is the light coming from here?

[01:05:42]She is running away. She left here.

[01:05:45]Sorry.

[01:05:46]She left here. She left here and went away. Part Isn't it happening? It is spreading. leaving a point What is happening? She is running away.

[01:05:55]What is happening after leaving a point? Part Has been. So what are all these rays?

[01:06:00]Will it be said to you? Which is a divergent beam?

[01:06:03]A beam will be called diverging with you Kiranpunj, according to me, all your things You must be understanding, okay, let's move on.

[01:06:14]will move towards Now after all this, it is time for the matter brother near you Now comes the whole talk about convergence.

[01:06:35]convergent Convergent beam Convergent beam Convergent beam Who A beam is a convergent beam What is a convergent beam?

[01:06:56]What is a convergent beam?

[01:07:04]What is a convergent beam? so like that beam of light like that such a beam of light I saw such a beam of light from the convergent The definition about it has just been told to you here.

[01:07:21]What is that thing, brother?

[01:07:26]Look what does convergent mean here? any one Many rays going to a point It meets at the point. That's what we the people What do you say? Convergent. What do you say?

[01:07:35]Convergent. Okay, right? what is that called Are? Convergent. So a beam of light in which in which light in which light beam of light light at a point Any One point going to a point go and meet go and meet Him convergent to him It is called a convergent beam It is called a convergent beam He went and met his lover It is called a convergent beam of light. Ok?

[01:08:33]Like, look, I made it a point.

[01:08:36]Diya and what are the many rays here Is it happening? I am coming and meeting you. here a lot What is happening to all the rays? I am coming and getting Is. What is happening with these rays coming? Mill Has been. Okay, right? What are these rays doing?

[01:08:49]Is? I am coming to meet you. So this is what it will be called near you Whatever it is called, it will be called what you have.

[01:08:57]Convergent beam. which beam Will it be called? Convergent beam. appearing You will have it. Things will also make sense Brother, what is called a convergent beam?

[01:09:10]What is called a convergent beam of light? From here Understand everything very clearly What is a convergent beam?

[01:09:17]Is? Ok? So this is what you see in front of you.

[01:09:20]This is the divergent you have on the diya screen.

[01:09:24]This is the diverging ray that you see.

[01:09:27]There is a cluster. divergent This is a divergent beam. which beam Is? Divergent beam.

[01:09:39]And this is what is visible, this is what is visible Is this happening? There you have it Convergent Convergent beam Which convergent beam bunch Okay, so you have it, Convergent.

[01:09:56]According to me, the beam is divergent and convergent.

[01:10:00]All the children should understand about Kiran.

[01:10:02]I don't think he might have come here.

[01:10:05]That you may have some doubts, okay, move ahead.

[01:10:08]Let us now move on to its third part.

[01:10:11]Watch its third part carefully.

[01:10:14]understood that the ray angle which Spreading out from a point, it is called converging Diverging him. Now the ray angle in which any Rays reaching a point converge to it And what is parallel to that ray which What are you to each other? be parallel to it Parallel beam. So let's move forward Let's move forward and write, brother, parallel Beam of light.

[01:10:42]will go See which beams are parallel beams?

[01:10:55]Parallel beam Next you have parallel or parallel parallel beam parallel beam good beam beam What is? Once again in the comment section The children will tell. The beam of light is called that What is a group of rays of light called?

[01:11:16]goes? It is called a beam. Ok No? So all of you are trying to memorize things by rote.

[01:11:20]There is no need. You can draw a little diagram And if you read through the figure then someone There will be no problem. Now the parallel beam What is? So such a beam like that such a beam such a beam in which in which of light in which light in which rays of light in which the light rays in which rays of light intersect each other parallel to each other What are you to each other? be parallel.

[01:12:11]be parallel to each other. Him Him parallel to him It is called a beam of light. parallel rays to it bunch He receives a parallel beam beam of light They say. what is he called? parallel It is called a beam of light. That is, such a beam of light In which light is what to each other?

[01:12:42]If they are parallel, they are called parallel beams.

[01:12:45]Are.

[01:12:47]Ok? I will ask, Sir, where are you from? Brother I am from Bihar.

[01:12:53]I am from Bihar.

[01:12:56]How much should I tell you? I am from Bihar.

[01:12:59]Okay, right? What is that called?

[01:13:02]It is called a parallel beam bower. here too The matter has come up. The figure of a parallel beam What are those things? Through the figure Understand that they will be parallel to each other. These It became a ray. This also became a ray. This is also a ray Hui. This also became a ray. This also became a ray. These What do they have for each other? What is all? One is parallel to the other. These are each other's What is? is parallel. Okay, right? So this What will it be called? These parallels.

[01:13:28]This is a parallel beam. Okay, right? These What do you have? The beam is parallel.

[01:13:36]Are you getting the point? This parallel There is a beam of light. I understand the matter Will happen. As far as I understand, all children To. This is a parallel beam. What is?

[01:13:45]Parallel beam. Ok? what is this near you? Parallel beam.

[01:13:51]Let's move on. Request to all children I request you to like it once with folded hands session and make the session a blast Give. Ok? near your friends Please share it in. Now what does it mean to say It so happened that everyone knew about the rays.

[01:14:04]Learned about the beam of light. All rays Got to know about. about the beam I got to know. So brother, these rays are These rays are impurities Will pass through. Where will it pass through?

[01:14:21]So you will say that brother, through substances It will pass.

[01:14:27]trigonometry chapter of maths [sound of clearing throat] formula Please explain.

[01:14:36]Brother, I am not teaching maths right now. Now!

[01:14:39]I am teaching science, so you teach science Attend the class. When I was studying trigonometry If I teach, you can join me.

[01:14:45]small. Ok?

[01:14:49]Whenever I'm not teaching trigonometry.

[01:14:52]Now I will teach trigonometry, so there You please explain. Please understand. Ok? every Things don't happen the way you say they will.

[01:15:00]Will get it. Ok?

[01:15:03]Because this class is going on right now, so this carry on with. If the rest works then you will see. Correct Is?

[01:15:11]hello. Hello Ragini. Good evening. Good Evening.

[01:15:16]How are you? You are cool.

[01:15:18]Everyone's classes will start from tomorrow.

[01:15:23]Tell everyone tomorrow that from tomorrow everyone People will have classes. I am quite I am fine. So I'm your YouTube channel today.

[01:15:31]I am taking classes. Ok?

[01:15:39]Let's move ahead. The best from this chapter Most of the questions are asked in science.

[01:15:45]So that's what I'm doing here. Now look Let us understand some substances here.

[01:15:50]Are. look at some substances substances that are i.e I will not give the definition of matter.

[01:15:58]I have been. I will tell you about the substance I am saying what it means to say that The substances that exist are substances. So Brother of the substance, you have three of them.

[01:16:09]Types of means relative to light I am telling you about the substance. Light is relative to. Okay, right? This is none He will understand that I have started teaching chemistry.

[01:16:18]Did it. It's not like that. I am also the light I am talking to a relative of. of light Relative to the substance that exists, it means matter.

[01:16:29]The matter that exists is divided into three parts: light Passes through. Three types of your There are substances nearby. You have one transparent.

[01:16:40]One is that you have a transparent substance.

[01:16:44]One is that you have a transparent substance.

[01:16:49]Okay, right?

[01:16:53]One is you have a transparent substance and The second one is what happens to you.

[01:16:58]Opaque.

[01:17:01]opaque substances And the third thing that happens is what you have Say semi.

[01:17:12]Say Semi Semi Transparent Or or translucent Or what happens? translucent Or translucent material.

[01:17:29]Okay, right? You have three types of substances There are. Relating to light. There happens to be one We Debit. Is it okay, brother? yes brother right Yes, the little one is cool. It's cool right now. At once I am fine.

[01:17:51]Ok. So your class will be held tomorrow.

[01:17:56]Ok.

[01:18:13]So, there are three types of substances.

[01:18:17]Are. You have one that is transparent, one that is You have a transparent, one You have an opaque, a semi Say transparent or say translucent. This in which three types of light They are relative. Now these three substances What's in it? I will pay attention to things. Now these What is there in all three substances that light that happens is light because we People are reading about light from here.

[01:18:43]Are. No one is reading about the other.

[01:18:44]so no discussion about the other Will run it. But the light which is called R It should be crossed easily. to whom is the light Should I go? We should be able to cross it easily It is called transparent. What do you say?

[01:18:56]transparent. Tell me once in the comment box.

[01:18:59]The one through which light passes is called What substance do people call? all at once Children should tell in the chat box that in which Which material allows light to pass through?

[01:19:09]They say. So that's what you have transparent and does not allow light to pass through What do we call him? near you Opaque. What do you say? Opaque. And in which light in which light a little bit Or half-half, that is, cross it little by little.

[01:19:26]It is called translucent or semi-transparent or something else.

[01:19:30]You also have a name. It has another name also.

[01:19:33]You have a name, a little, a little transparent.

[01:19:37]What is? Slightly transparent. What is? Small transparent. Like what does light become?

[01:19:43]And let us cross it little by little.

[01:19:45]What do you say? Slightly transparent. Okay, right?

[01:19:48]So its name is three-three semi-transparent, Translucent or semi-transparent you have. Correct Is? Similarly. So let us understand that we People, what is transparent? what is opaque thing and slightly transparent or opaque semi What are transparent or translucent substances?

[01:20:07]Are? Okay, right? Let's talk about all three.

[01:20:09]Let us understand what all things are.

[01:20:12]Let go So here I take your first one.

[01:20:18]Pass first done transparent to you.

[01:20:22]What happened to you? transparent Transparent substance.

[01:20:28]Okay, right? Transparent substance. transparent What is matter?

[01:20:36]such substance such substance from whom from whom Light easily easily light passes through easily Light passes through easily get across let it be him Him transparent to him It is called transparent substance. what does he They say? transparent. her transparent substance They say. Ok? what is he called?

[01:21:29]It is called a transparent substance. from which light What happens easily? Let it go through.

[01:21:34]What do we call that? near you It is called a transparent substance. like for For example, in Like I let me tell you it's been glass.

[01:21:48]You can call white glass clean white glass.

[01:21:53]White White glass.

[01:21:58]Okay, right? Which contains ice. clean water Done.

[01:22:04]Clean It's watery.

[01:22:09]The water became clear.

[01:22:12]It became cotton cloth or cotton fabric.

[01:22:17]It became cotton cloth. Ok?

[01:22:21]Is there a cotton cloth or do you have a mirror?

[01:22:25]Gone or you have the lens. Okay, right?

[01:22:30]What are these substances called that you have?

[01:22:32]transparent. What are they called? transparent. Correct Isn't it? Once all the children are in the chat box Please like it. Please comment. Ok? So that What do you have? transparent. Correct Is? Make all the children understand me accordingly I must be wondering what transparent thing is brother?

[01:22:49]Is? Things to know about transparency [sound of clearing throat] that transparent What is that thing brother, that substance in which What can the light easily do, ask across What do we call that transparent?

[01:23:01]That's what we call transparent.

[01:23:05]Okay, so what do we call that?

[01:23:07]transparent What do we call transparent?

[01:23:20]We call it transparent. Now it's talking transparent so you understood about transparent After this the question comes brother, what is opaque?

[01:23:28]Is it something? What is it? Opaque. Second The topic is opaque to you.

[01:23:33]Aparashi.

[01:23:37]opaque objects or substances. opaque What makes a substance opaque? So I Did I just explain to you that the light from which It should become transparent through and through. which the light It should not be opaque through and through. from which light What do you call it when you cross it little by little?

[01:23:58]Semi transparent. What do you say? semi transparent. Okay, right? what do we do to him They say? Semi transparent. So here's the thing Brother is coming What is that opaque substance? so like that Substance like that substance from which from whom Light Through which light cannot pass. from which light It should not be across.

[01:24:32]It should not be across. It should not be across, not on the other side yes. No, no. Him opaque to her him immense spectator It is called opaque substance. Him It is called an opaque substance. from which light What do we call that which is beyond measure?

[01:25:00]Are? It is called an opaque substance. For In the example For example, what will happen?

[01:25:08]It's like you have a stone.

[01:25:13]turned into stone, turned into brick became stone, became brick, became wood Thick cardboard has become thick cardboard Thick cardboard became plastic plastic Has it become plastic etc.?

[01:25:37]light that emanates from all objects He can't go to R. all these things The light from cannot go to R.

[01:25:46]So what will all these things be called to you?

[01:25:49]Near? Opaque. What will you call it?

[01:25:52]Opaque.

[01:25:53]Okay, right?

[01:26:00]very nice.

[01:26:02]I am also a great devotee of Premananda Ji Maharaj.

[01:26:05]I am his follower. I mean I am going to accept it.

[01:26:08]I also respect Premananda Ji Maharaj very much.

[01:26:11]I believe it wholeheartedly. because I believe That if there is any form of God on this earth.

[01:26:17]I don't say God, but if someone If God has any form, it is you in our Premand Maharaj ji among you.

[01:26:28]I definitely give him God's blessings.

[01:26:31]Plus, I thank him wholeheartedly.

[01:26:34]I bow to him because he is a living example of this In this sinful world, in this corruption, he He is the best person. Because you see so much There have been so many saints, sages and great heroes.

[01:26:46]are visible among them today's How good is the date today?

[01:26:51]He is a great person. That's why Transparent transparent, that's what I told Chotu that whatever happens to the light, it passes through it.

[01:27:13]through which light passes easily, such as What do you do now about the light from here?

[01:27:19]from the mirror i.e. from the glass to you from the glass Can you see the glass, the white one?

[01:27:24]The light that comes from the torch It comes out of the hole, what do we know about it?

[01:27:28]They say? transparent. Ok? like light If it is transparent then it is called transparent.

[01:27:34]opaque such that light cannot pass through it They say. Ok? Do I make myself clear You will have it.

[01:27:44]Let's move ahead. I will like it once And will subscribe to the channel if new Will be on the channel. So. Now comes the third thing Brother, here with you.

[01:27:56]Third thing comes to you semi transparent Tell me what is his name? half half transparent What is? Semi Transparent semi transparent or what do you call it Also called translucent. what did you say to him goes? translucent.

[01:28:16]Translucent. Okay, right? what is he called Is? Translucent. What is it called?

[01:28:21]Translucent. Or it has another name. I Let me write it here for you in brackets.

[01:28:26]One is little. only means little Little by little. Slightly transparent. what would have happened Is? slightly transparent Matter or objects are the same thing. in that he Not there. Okay, right? That's it. all these All three things are about the same thing. All three The things are the same. Okay, right? All three The things are the same. Now what would this thing be?

[01:28:50]Is? semi-transparent or translucent What is transparent? i.e What does it mean to say that such a thing such an object such an object from which such an object from which Light from which light Light that gives off little light what a little bit little by little Cross over little by little. little by little cross Do it.

[01:29:30]Him Him It is semi-transparent It is called semi-transparent or slightly transparent Small transparent it is slightly transparent It is called a semi-transparent object. say the object Are. They say. Okay, right? like example In will pay attention Like in the example, it got oiled paper Oil oiled oiled paper oiled paper Is it okay or is it just worn glass?

[01:30:26]worn out broken glass Worn glass.

[01:30:32]Ok? These things happen, right?

[01:30:35]it occurs? You have semi-transparent or transparent transparent.

[01:30:39]Ok?

[01:30:41]According to me it will be clear till here.

[01:30:44]I think all the children here It must have become clear. would have understood Who is what and what is not Is. Ok?

[01:30:55]As far as I understand.

[01:31:13]one minute Okay, I'll stop the class here.

[01:32:08]All the children until then all the children Hello, thank you, Tata, bye-bye, see you, bye Ok.