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

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asked Jan 19, 2018 in Physics by Kundan kumar (49,132 points) 34 384 1028

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

1 Answer

+1 vote
answered Jan 19, 2018 by Vikash Kumar (144,729 points) 8 11 21
edited Jan 25, 2018 by faiz
 
Best answer

Here, radius of curvature, R = 20 cm.
Focal length, f=?
We know, that, f =R/2  = 20/2 cm = 10 cm
The focal length of 
spherical mirror is 10 cm.

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