Question

Concerning the laws of reflection of light, which among the following is the correct option?

Answer 1

• The angle of incidence is the angle between the incidence ray and the normal drawn from the point of incidence, i.e., a is the angle of incidence in this case.
• On the other side, the angle of reflection is the angle between the same normal and the reflected ray, i.e., b is the angle of reflection in this case.
• Since the normal is always perpendicular to the surface, the sum of a and 60° should be 90°. Then a should be 30°.
• Also according to the law of reflection, b should also be equal to a, i.e., b = a = 30°.
• So the correct answer is C, 'Angle of incidence is 30°'.