#### Question

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

clickto share

#### Solution

Radius of curvature, *R*= 20 cm

Radius of curvature of a spherical mirror = 2 × Focal length (*f*)*R*= 2*f**f*= *R*/2 = 20 / 2 = 10

Hence, the focal length of the given spherical mirror is 10 cm.

Is there an error in this question or solution?

#### Related QuestionsVIEW ALL [44]

#### 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