32. The focal length of a concave mirror with a radius of curvature of 20.0 cm is : A.20 cm B.5 cm C.10 cm D.15 cm

user image

Abhishek Mishra

2 years ago

Answer: Option C Solution: Let us assume f is focal length R is radius of curvature According to the formula R = 2f f = R/2 = 20/2 = 10 cm

Recent Doubts

Close [x]