Q.
A point source of light $S ,$ placed at a distance $60 cm$ infront of the centre of a plane mirror of width $50 cm$, hangs vertically on a wall. A man walks infront of the mirror along a line parallel to the mirror at a distance $1.2 m$ from it (see in the figure). The distance between the extreme points where he can see the image of the light source in the mirror is $\ldots \ldots \ldots . cm$.
Solution:
