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what is is geometric centre of a mirror why it is called as?

what is is geometric centre of a mirror why it is called as?
 
 

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2 Answers

Arun
25750 Points
4 years ago
The point at which the principal axis touches the surface of the mirror is called the vertex. The point , on the principal axis, which is equidistant from all points on the reflecting surface of the mirror is called the centre of curvature.
Vikas TU
14149 Points
4 years ago
Dear student 
I will talk in sense of geometric centre of spherical mirror.
The geometric centre of a spherical mirror is called its pole. The centre of the hollow sphere for which the mirror is a part, is called the centre of curvature. The line joining the centre of curvature and the pole is the principal axis. A light ray incident on a spherical mirror, after reflection appears to pass through the principal focus in the case of a convex mirror and passes through the focus in the case of concave mirror. The diameter of the spherical mirror gives the measure of its aperture.
Hope this helps 
Good Luck 

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