Two plane mirrors are arranged parallel and facing each other at some separation. How many images are formed for a point object kept in between them? Show the formation of images with the help of a ray diagram.

State the number of images of an object placed between the two plane mirrors, formed in each case when the mirrors are inclined to each other at

(a) 90° and

(b) 60°

A …………… mirror is made by silvering the …………… surface of a piece of a hollow sphere.

1. convex, outer
2. plane, outer
3. concave, outer
4. concave, inner

A …………… mirror is made by silvering the …………… surface of a piece of a hollow sphere.

1. concave, inner
2. convex, inner
3. convex, outer
4. None of the above