According to the law of reflection, if a beam of light strikes a flat mirror at an angle of 30° relative to a plane perpendicular to the surface of the mirror, at what angle will it reflect, relative to a plane perpendicular to the surface of the mirror?
A) 0°
B) 30°
C) 60°
D) 90°
E) 120°

Question

Quizplus · Accepted Answer

According to the law of reflection, the angle of incidence (the angle between the incident ray and the normal to the surface) is equal to the angle of reflection (the angle between the reflected ray and the normal to the surface). Therefore, the beam of light will reflect at an angle of 30° relative to a plane perpendicular to the surface of the mirror.

According to the Law of Reflection, If a Beam of Light