A plane mirror is mounted on a trolley and moves away from an observer linearly with a velocity of $

Question

A plane mirror is mounted on a trolley and moves away from an observer linearly with a velocity of $\mathrm{V} \mathrm{km} / \mathrm{hr}$. The image of the observer seems to move away from the observer at a rate of\

Professor PC Thomas Classes · Answer

In a plane mirror image distance = object distance\ When the mirror moves at $\mathrm{v} \mathrm{km} / \mathrm{h}$ the object distance increases at the rate $\mathrm{v} \mathrm{km} / \mathrm{h}$. So the image distance also increases at $\mathrm{v} \mathrm{km} / \mathrm{h}$. So the distance between the object and image increases at 2 v km/h.\