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If the radius of curvature of a concave mirror is 30 cm, what is its focal length? - Physics

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Question

If the radius of curvature of a concave mirror is 30 cm, what is its focal length?
One Line Answer

Solution

Focal length = 1/2 of radius of curvature
= 1/2 X 30 = 15cm.

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Chapter 6: Light - Spherical Mirrors [Page 258]

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Frank Physics [English] Class 9 ICSE
Chapter 6 Light
Spherical Mirrors | Q 3 | Page 258
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