Question

A point source of light B is placed at a distance L in front of the centre of a mirror of width d hung vertically on a wall. A man walks in front of the mirrior along a line parallel to the mirror at a distance 2L from it as shown. The greatest distance over which can see the image of the light source in the mirror is-

• A. $\frac{d}{2}$
• B. $d$
• C. $2d$
• D. $3d$

Answer 1

The correct option is D $3d$

Option D is correct