Write the formula for a lens connecting image distance (), object distance (u) and the focal length (f). How does the lens formula differ from the mirror formula?
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The formula showing the relation between object distance, image distance and focal length is:
1/F= 1/U + 1/V, where U denotes object distance,
V denotes image distance and
F denotes the focal length of the spherical mirror.
On the other hand, the concept of a lens is such that,
1/V - 1/U = 1/F in case of a lens.
where U,V, and F means similar but the overall formula is negative in this case.
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Answer: As follows
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