Prove that focal length of a spherical mirror is equal to half the radius of its curvature.

The focal length of spherical mirror is

Define the focal length of a spherical mirror.

If we say that the focal length of a spherical mirror is n times its radius of curvature, then n must be

The focal length of a spherical mirror is given by f=R/2 , where R is radius of curvature of the mirror. For a given spherical mirror made of steel the focal length is f = 24.0 cm. Find its new focal length if temperature increases by 50^(@)C . Given = alpha_("Steel")=1.2 xx 10^(- 5).^(@)C^(-1)

If the focal length of a spherical mirror is 12.5 less cm, its radius of curvature will be :

Principal focal length of a spherical mirror is equal to……….. Radius……… of the mirror.

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

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

If the focal length of a convex mirror is 25 cm, what is its radius of curvature ?