How is the focal length of a spherical mirror related to its radius of curvature ?

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Solution

Focal length = Radius of curvature / 2
Or 2 F = R

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Q. The focal length

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The radius of curvature of a spherical mirror is 20 cm. What is its focal length?

What is the relation between the focal length and radius of curvature of a spherical mirror (concave mirror or convex mirror) ? Calculate the focal length of a spherical mirror whose radius of curvature is 25 cm.

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

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How is the focal length of a spherical mirror related to its radius of curvature ?

Focal length = Radius of curvature / 2 Or 2 F = R

Focal length = Radius of curvature / 2
Or 2 F = R