Question

Define
centre of curvature of a spherical mirror
Pole of a spherical mirror

Answer 1

Definition:-

centre of curvature- The centre of curvature is the centre point of the circle or sphere. It is denoted as 2F or C.

Pole- pole is a point on the principal axis and is the mid point of the spherical mirror.

Answer 2

(a) Centre of curvature is the centre of the sphere of which the spherical mirror is a part.

(b)Pole is the mid point of a spherical mirror.