An Aquarium Contains a 5-Cm Layer of Water (N =

Multiple Choice

An aquarium contains a 5-cm layer of water (n = 1.33) floating on top of carbon tetrachloride (n = 1.461) . If the angle of incidence into the water from the air is 30°, what is the angle of refraction into the carbon tetrachloride?

A) 58°
B) 69°
C) 37°
D) 20°
E) 75°