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in Physics by (55 points)
edited by

The expression for the magnification of a spherical mirror in terms of focal length (f) and the distance of the object from mirror (u) is :

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1 Answer

+1 vote
by (47.5k points)

Magnification, m = – v/u

Mirror formula is 1/f = 1/v + 1/u

or, 1/v = 1/f – 1/u

or, v = uf / (u -f)

Therefore, m = v/u = f / u -f 

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