The focal length of a spherical mirror of radius of curvature 30 cm is:

The focal-length of a spherical mirror of radius of curvature 20cm is

Choose the correct alternative and write it along with its allotted alphabet: The focal length of a spherical mirror with radius of curvature 30 cm is ........ A. 30 cm B. 60 cm C. 15cm D. 45 cm

The focal length (f) of a spherical mirror of radius of curvature R is

The ratio of the focal length of spherical mirror to its radius of curvature is

The ratio of the focal length of spherical mirror to its radius of curvature is-

Define the radius of curvature of a spherical mirror. Find the nature and focal length of a spherical mirror whose radius of curvature is 24 cm.

What is the relation between the focal length and radius of curvature of a spherical mirror (concave mirror or convex mirror ) ? Calculate the focal length of a sphrical mirror whose radius of curvature is 25 cm.

The focal length of a concave mirror with radius of curvature 12 cm is