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# Solution - The radius of curvature of a spherical mirror is 20 cm. What is its focal length? - CBSE Class 10 - Science

ConceptRepresentation of Images Formed by Spherical Mirrors Using Ray Diagrams - Concave Mirror

#### Question

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

#### Solution

Radius of curvature, R= 20 cm
Radius of curvature of a spherical mirror = 2 × Focal length (f)R= 2f
fR/2 = 20 / 2 = 10
Hence, the focal length of the given spherical mirror is 10 cm.

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#### APPEARS IN

NCERT Science Textbook for Class 10 (with solutions)
Chapter 10: Light - Reflection and Refraction
Q: 2 | Page no. 168

#### Reference Material

Solution for question: The radius of curvature of a spherical mirror is 20 cm. What is its focal length? concept: null - Representation of Images Formed by Spherical Mirrors Using Ray Diagrams - Concave Mirror. For the course CBSE
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