A parallel beam of monochromatic light in air is incident on a plane glass surface.In the glass, the beam:
A)remains parallel
B)undergoes dispersion
C)becomes diverging
D)follows a parabolic path
E)becomes converging

Question

Quizplus · Accepted Answer

When a parallel beam of monochromatic light in air is incident on a plane glass surface, it undergoes refraction and enters the glass at a different angle, but the outgoing beam remains parallel to the incoming beam. Hence, the answer is (A) remains parallel.

A Parallel Beam of Monochromatic Light in Air Is Incident