A ray of light strikes the interface between two media. At the interface some of the light is reflected; the reflected ray obeys the law of reflection, so the angle of incidence equals the angle of reflection.
If the angle of incidence is the critical angle for this interface, which path will the refracted ray follow?
Previous question : I - Refraction (case 3).
List of conceptual questions for test 2.
Created by Andrew Duffy, Boston University Physics Department.
Last update July 20, 1998