Question

First law of reflection light

Answer 1

Consider a light-ray incident on a plane mirror, as shown in Fig. 56. The law of reflection states that the incident ray, the reflected ray, and the normal to the surface of the mirror all lie in the same plane. Furthermore, the angle ofreflection is equal to the angle of incidence .

Answer 2

first law:
the angle of incidence is equal to angle of reflection.