For the system as shown in the figure, the image formed by the concave mirror

Options

A. will have speed greater than the speed of the object
B. may have speed greater than the speed the object
C. will have speed less than the speed of the mirror
D. moves away from the mirror

Answer

A

Explanation

There is no effect of parallel slab in the velocity of image. Image has the velocity in the opposite direction as of object. When we add the velocity of mirror in the velocity of image. Then that will be 2u+v'(v' is the velocity of image w.r.t. mirror) so, speed of image is greater than speed of mirror and object.