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.