Define a spherical mirror. State its two types and distinguish between them.

Explanation

A mirror whose reflecting surface is a part of a sphere is called a spherical mirror. Spherical mirrors are of two types, namely (i) concave mirror and (ii) convex mirror.
Differences between them are as follows :
`{:(" ""Concave mirror"," ""Convex mirror"),("(1) Its reflecting surface is curved inward and","(1) Its reflecting surface is curved outward"),("its centre of curvature and principal focus","and its centre of curvature and principal"),("are situated in front of it.","focus lie behind the mirror."),("(2) It can form real or virtual image of an object","(2) It can form only virtual image of an object"),("depending on the position of the object.","irrespective of its position."):}`