Question

1 Mark
03. Focal length of a given spherical mirror is 'f'. What will be the focal
length of another mirror whose radius of curvature is twice of the
given mirror?
a f/2
b. f
c. 2f
d. 3f
a​

Answer 1

Explanation:

The true statement is: for a spherical mirror, the focal length is equal to half its radius of curvature. f =R/2. Focal length is equal to 1/2 the radius.