Image Formed By Plane Mirror

Q.

Raj is standing in front of a plane mirror. The distance between Raj and his image is $100cm$. If the distance between the mirror and image is $x$. What could be the possible value of $x$?

Q. A person is standing at 60 cm away in front of a plane mirror. The mirror is moved towards him. It was found that the final image also moved by 40 cm from its initial position towards the mirror. Find the distance the mirror was moved by.

1. 20 cm
2. 80 cm
3. 15 cm
4. 40 cm