Question

Give the defination spherical mirror
(i) Pole
) Centre of curvature
page
(iii) Principal focus​

Answer 1

Answer:

Pole:- The centre of the reflecting surface of a spherical mirror. It lies on the surface of the mirror. The pole is usually represented by the letter P.

Centre of Curvature:- The centre of curvature is the centre of the sphere from which the mirror is cut. The midpoint of the aperture is the pole of the mirror.

Principal Focus:- The principal focus is defined as the point where a beam parallel to the principal axis appears to diverge converges from a point on the principal axis after passing through the lens.

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