Question

An irregular crystal structure reflects all the light that falls on it as shown in the diagram.

Which of the following statement is true?

• A. Laws of reflection are not applicable.
• B. Angle of incidence equals the angle of reflection.
• C. Incident ray, reflected ray and the normal all lie in the same plane.
• D. Laws of reflection is applicable in some situations only.

Answer 1

Answer: (B), (C)

Incident ray, reflected ray and the normal all lie in the same plane.

Laws of reflection holds true for all kinds of reflecting surface. Since the above surface is irregular, hence the normal at different points will be in different directions but the laws of reflection will be applicable at each of these minute surfaces where reflection is happening.