A diver shines light up to the surface of a smooth pond at a 10 degree angle to the normal. Some light passes into the air above, and the part that reflects back into the water makes an angle to the normal of
A) more than 10 degrees.
B) less than 10 degrees.
C) 10 degrees.

Question

Quizplus · Accepted Answer

According to the law of reflection, the angle of incidence is equal to the angle of reflection. Therefore, if the light hits the surface at a 10-degree angle to the normal, it will reflect back into the water at the same 10-degree angle to the normal.

A Diver Shines Light Up to the Surface of a Smooth