Define:
(a) Radius of curvature of spherical mirror
(b) Focal length of spherical mirror.

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Solution

(a) Radius of curvature (R) of a spherical mirror is defined as the radius of an imaginary hollow sphere of which the mirror is a part.
(b) Focal length (f) of a spherical mirror is the distance of the point from the pole at which all the rays parallel to the principal axis are converged after reflection.

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Define:(a) Radius of curvature of spherical mirror(b) Focal length of spherical mirror.

Define:
(a) Radius of curvature of spherical mirror
(b) Focal length of spherical mirror.