Surfaces on which the angle of incidence is equal to the angle of reflection is/are
A. S₁ only
B. S₁ and S₂ only
C. S₂ and S₃
D. all the three surfaces
Answer:D
Surfaces on which the angle of incidence is equal to the angle of reflection is/are
A. S₁ only B. S₁ and S₂ only C. S₂ and S₃ D. all the three surfaces