Reflecting of light from curved surfaces - Spherical Mirrors
When a parallel beam of light rays falls on a plane mirror , it is reflected as a parallel beam. But it does not converge and diverge the parallel rays of light.
The spherical mirrors which can converge or diverge the parallel rays of light which fall on them.
A spherical mirror is that mirror whose reflecting surface is the part of a hollow sphere of glass.
There are two type of spherical mirror.
1. Concave mirror :
spherical mirrors in which outward surfaces are painted are known as concave mirrors.
2. Convex mirror:
spherical mirrors in which inward surfaces are painted are known as convex mirrors.
