A real object is moving toward a fixed spherical mirror. The image

Options

A. must move away from the mirro
B. may move away from the mirror
C. may move toward the mirro if the mirror is concave
D. must move toward the mirror if the mirror is convex

Answer

b.,c.,d.

Explanation

If the mirror is concave and a real object is approaching it, the image will move away from the mirror for object distance greater than focal length. If object distance is less that the focal length, virtual image will be formed which moves toward the mirror.
If mirror is convex, as object is approaching the mirror, image will move from focus to pole, i.e., toward the mirror.