Rohan is taking a brisk walk towards a mirror at 2.5 m/s. At an instance, he finds his image to be at a distance of 16 m from him. How far will be the mirror from Rohan after 2 seconds?

Rohan stands in front of a mirror at different distances; still his image always appears erect. The mirror can be ​a ____________.​

A person suffering from myopia is holding a mirror at 100 cm from his face. But he cannot look at it’s image. So he moves the mirror towards him by 40 cm. Find the distance by which his image moves.