With the help of a suitable diagram,explain the meaning of the following terms for concave mirror 1.Centre of curvature 2.Pole 3.Principal axis 4.Focus

The point in the center of the sphere from which the mirror was sliced is known as the center of curvature and is denoted by the letter C in the diagram below. The point on the mirror's surface where the principal axis meets the mirror is known as the vertex and is denoted by the letter A in the diagram below.

Some important definitions. The principal axis of amirror is a line through the centre of the mirror which passes through its centre of curvature.

The pole of the mirror is where the principal axis meets the mirror. The centre of curvature of a mirror is the centre of curvature of the minor surface.

hope this helps.

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