The critical angle for total internal reflection is a:
A) is a single angle for which transmission through the boundary is zero
B) a maximum angle of incidence,below which no light is transmitted through the boundary
C) minimum angle of incidence,above which no light is transmitted through the boundary
D) may be either a minimum or a maximum angle,depending on which of the indices of refraction is larger

Question

Quizplus · Accepted Answer

The critical angle is the minimum angle of incidence above which no light is transmitted through the boundary. This only occurs when the angle of incidence is greater than the angle of refraction, which is possible when light is passing from a more dense to a less dense medium.

The Critical Angle for Total Internal Reflection Is A