wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

If the radius of curvature of a concave mirror is 20 cm, then its focal length is:
  1. 10

Open in App
Solution

The correct option is A 10

Given,
Radius of curvature, R=20 cm
We know
Focal length, f=12×R
=12×20
=10 cm


flag
Suggest Corrections
thumbs-up
2
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
focus and focal length
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon