What is the critical angle for light traveling from crown glass (n = 1.52) into water (n = 1.33)?
A) 61°
B) 66°
C) 42°
D) 57°
E) 48°

Question

Quizplus · Accepted Answer

The critical angle is given by sin(theta_c) = n2/n1, where n1 is the index of refraction of the medium the light is traveling from and n2 is the index of refraction of the medium the light is traveling to. In this case, n1 = 1.52 and n2 = 1.33, so sin(theta_c) = 1.33/1.52 = 0.875. Therefore, theta_c = 61 degrees.

What Is the Critical Angle for Light Traveling from Crown