The critical angle for a beam of light passing from water into air is 48.8°. This means that all light rays with an angle of incidence in the water that is greater than 48.8° will be
A) totally reflected.
B) partially reflected and partially transmitted.
C) totally transmitted.
D) totally absorbed by the water.

Question

Quizplus · Accepted Answer

When the angle of incidence in water exceeds the critical angle (48.8° in this case), total internal reflection occurs, meaning all the light is reflected back into the water, not transmitted or absorbed.

The Critical Angle for a Beam of Light Passing from Water