REFLECTION OF LIGHT BY DIFFERENT SURFACES

×)Light is a form of energy.
×)Light is needed to see things around us.
×)We detect light with our eyes.
×)Light travels in a straight line.
×)Light selects the path which takes the least time to travel.This principle was first given by PIERRE DE FERMANT.

×)THE LAWS OF REFLECTION
a) Angle of incident is equal to angle of reflection.
b) The incident ray, the reflected ray and the normal lie in the same plane.

×)The plane in which the incident ray, reflected ray and the normal lie, is the plane of reflection.
×)The size of the object and the size of the image are equal in a plane mirror.
×)The size of the image seem to be decreased when we move the object towards the eye (or) away from the mirror.