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The Focal Length of a Spherical Mirror of Radius of Curvature 30 Cm Is: (A) 10 Cm (B) 15 Cm (C) 20 Cm (D) 30 Cm - Science

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Question

The focal length of a spherical mirror of radius of curvature 30 cm is:

(a) 10 cm
(b) 15 cm
(c) 20 cm
(d) 30 cm

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Solution

15 cm  

The focal length of a spherical mirror is half of its radius of curvature.

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Chapter 4: Reflection of Light - Exercise 2 [Page 179]

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Lakhmir Singh Physics (Science) [English] Class 10
Chapter 4 Reflection of Light
Exercise 2 | Q 17 | Page 179
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