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Relationship between Focus and Radius of Curvature

If the focal ...

Question

If the focal length of a spherical mirror is 12.5 less cm, what will be its radius of curvature?

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Solution

As we know Radius of the curvature of a spherical mirror = 2 times of focal length

Radius of the curvature the spherical mirror
= 2 ×12.5 cm.

So Radius of the curvature of the spherical mirror
= 25 cm.

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Similar questions

Q. If the focal length of a spherical mirror is 12.5 less cm, its radius of curvature will be:

(a) 25 cm
(b) 15 cm
(c) 20 cm
(d) 35 cm

Q. Define the radius of curvature of a spherical mirror.
If the radius of curvature of a spherical mirror is 20 cm, what is its focal length?

Q. Define:
(i) Focus
(ii) Focal length, for a spherical mirror.
If the focal length of a convex mirror is

20 cm

, find its radius of curvature.

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