What is the law of reflection

Reflection of light is the phenomenon of bouncing back of light in the same medium on striking the surface of any object.

•   The two laws of reflection are:

         (i) the incident ray, the reflected ray and the normal (at the point of incidence), all lie in the same plane.

         (ii) the angle of reflection (<i>r</i>) is always equal to the angle of incidence (<i>i</i>)

                  ∠<i>r</i> = ∠<i>i</i>

1. The law of reflection defines that upon reflection from a smooth surface, the angle of the reflected ray is equal to the angle of the incident ray, with respect to the normal to the surface that is to a line perpendicular to the surface at the point of contact.
2. The reflected ray is always in the plane defined by the incident ray and the normal to the surface at the point of contact of the incident ray.