Question

the centre of the reflecting surface of a spherical mirror is called ???

Answer 1

The center of the reflecting surface of a spherical mirror is called as the pole of the mirror which is mainly known as the center of curvature.

In addition to this, the straight line passes through this center of the reflecting surface in a spherical mirror that is termed as a Principal axis.

Answer 2

Pole of the mirror

Explanation:

• A spherical mirror is a mirror where its reflecting surface is the part of a  glass' hollow sphere
• Pole is a point in the centre of the spherical mirror's reflecting surface that  lies on the mirror's surface. That is, The point wherein the principal axis penetrates the mirror is referred to as the "pole" of the spherical mirror. Moreover, it is the mid-point of the spherical mirror's aperture and generally represented by the letter "P"