The mirror formula is 1/F = 1/V + 1/U, and the lens formula is 1/F = 1/V - 1/U, where F is focal length, V is image distance, U is object distance, and magnification M = H'/H = -V/U for mirrors and M = H'/H = V/U for lenses, with H' being image height and H being object height.
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Mirror and lens formula | Class-10 Science | Basic formula(optics) |Added:
Mirror formula.
1 by F equal to 1 by V plus 1 by U.
And magnification M equal to H' by H equal to minus V by U.
Lens formula.
1 by F equal to 1 by V minus 1 by U.
And magnification M equal to H' by H equal to V by U.
Where F means focal length, V means image distance, U means object distance, M means magnification, H' means height of the image, H means height of the object.
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