Question

The relation between radius of curvature (R) and focal length (f) of a spherical is ————— (a) R = 2f (b) 2R = f (c) R = 1/f (d) R = 1/2f

Answer 1

Answer:

a.) R = 2f

Explanation:

For any Spherical mirror where 'R' is the Radius of curvature and 'f' is the focal length of mirror, then,

f = R / 2

=> R = 2f

Hence, we get,

➡ R = 2f