MIRRORS - plane and spherical mirrors
Mirrors are polished or smooth surfaces, normally a glass coated with a metal amalgam. It can reflect clear image.
Plane mirrors
Spherical mirrors are mirrors which have reflective surface either curved inwards or outwards. It can be considered as a part of a sphere. A spherical mirror, whose reflecting surface is curved inwards (facing towards Center of sphere) is called as concave mirror. A spherical mirror in which reflecting surface is curved outwards is called as convex mirror