Question

The magnification of an image formed by a convex mirror is 1/p. calculate the object distance if the focal length of the mirror is f​

Answer 1

magnification = image distamce / object distance

let object distance = u

-1/v + 1/u = 1/f

v = uf/u - f

1/p = (uf / u-f)÷u

1/p = f/u - f

u-f = fp

u = f(p+1)

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