The speed of light in a material is 0.41 c.What is the critical angle of a light ray at the interface between the material and a vacuum?

Question

Quizplus · Accepted Answer

The critical angle can be calculated using Snell's Law. The refractive index of the material is the ratio of the speed of light in vacuum to the speed of light in the material, which is 1/0.41. Using the formula for the critical angle, sin(critical angle) = 1/refractive index, we find the critical angle to be approximately 24°.

The Speed of Light in a Material Is 0