Question

A convex lens of focal length f produces a real image of size m-times the size of the object. Then the object distance is:

(A) \((\frac{m+1}{m})f\)

(B) (m +1)f

(C) \(\frac{m+1}{f}\)

(D) \(\frac{fm}{(m+1)}\)

Answer 1

Correct option is  (A) \((\frac{m+1}{m})f\)