When a light ray in air enters water at 15° from the normal, it
A)always bends toward the normal.
B)always bends away from the normal.
C)sometimes bends towards or away from the normal.
D)does not bend.

Question

Quizplus · Accepted Answer

When a light ray travels from air to water, it slows down and bends towards the normal. This process is known as refraction. The amount of bending depends on the angle of incidence and the refractive indices of the two media. In this case, since the angle of incidence is 15° from the normal, the light ray will bend towards the normal when it enters water. Therefore, option A is the correct answer.

When a Light Ray in Air Enters Water at 15°