Question

A short linear object of length b lies along the axis of a concave mirror of focal length f at a distance u from the pole of the mirror. The size of the image is

• A. $\left(\frac{f}{u-f}\right)b$
• B. $(\frac{f}{u-f}{)}^{2}b$
• C. $\left(\frac{f}{u-f}\right)b^2$
• D. $\left(\frac{f}{u-f}\right)$

Answer 1

The correct option is B $(\frac{f}{u-f}{)}^{2}b$

Option B is correct