INTRODUCTION:
What is light? Light is the energy emitted by the excited atoms which can cause the sensation of vision in a human eye, hence light is a form of radiant energy.
What is optics? The branch of physics which deals with the phenomena concerning light is called optics .
We can classify the optics into : 1) Geometrical optics 2) Physical optics.
What is Geometrical optics? The study involves, the light is considered as moving along a straight line as moving along straight line as a ray. A ray of light gives the direction of light....
