A short linear object of length b lies along the axis of a concave mirror of focal length fat a distance u from the pole of the mirror, what is the size of image?

Options

A. `b((u-f)/(f))^(1//2)`
B. `b((b)/(u-f))^(1//2)`
C. `b((u-f)/(f))`
D. `b((f)/(u-f))^(2)`

Answer

D

Explanation

is the correct option.