Question

a point object is placed on the principal axis of a concave mirror quite far away from the pole and moved at a constant speed of 0.5 cm per second towards the pole.Its image also moves.It is found that the object and image cross each other at a point which is at a distance 50 cm from the pole.Then speed of the image when the object is crossing the position which is at distance 30cm from the pole is

Answer 1

speed is constant and at any point or distance it will remain same and as in its image also