Write the mirror formula. Give the meaning of each symbol which occurs in it.

What is the nature of image formed by a concave mirror if the magnification produced by the mirror is

(a) + 4, and (b) - 2 ?

State the relation between object distance, image distance and focal length of a spherical mirror (concave mirror or convex mirror).

What is the ratio of the height of an image to the height of an object known as ?

Define linear magnification produced by a mirror.