Question

Explain the following terms- Incident ray, reflected ray, angle of incidence, angle of reflection, normal.

Answer 1

Incident ray - the ray of light falling on the reflecting surface AB is called the incident ray.

Reflected ray - the light ray bouncing back in the same medium as incident ray, after striking the reflecting surface is called as reflected ray.

Angle of incidence - the angle between the incident ray and the normal is the angle of incidence.

Angle of reflection - the angle between the normal and the reflected ray is called angle of reflection.

Normal - it is an imaginary line, perpendicular to the reflecting surface at the point of incidence.