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 of reflection is equal to the angle of incidence . Both angles are measured with respect to the normal to the mirror.
A vertical black line crossed by a horizontal yellow line. A blue arrow strikes the crossing point from above at an angle from horizontal labeled angle of incidence. Another blue arrow points away from the crossing point at an angle labeled angle of reflection.
If the angle of incidence is 30°, what is the value of the angle of reflection?
