If n_water = 1.33 and n_glass = 1.50, then total internal reflection at an interface between this glass and water: A)occurs whenever the light goes from glass to water B)occurs whenever the light goes from water to glass C)may occur when the light goes from glass to water D)may occur when the light goes from water to glass E)can never occur at this interface

Question

Quizplus · Accepted Answer

Total internal reflection occurs when light moves from a medium with a higher refractive index to a medium with a lower refractive index, at an angle of incidence greater than the critical angle. Since the refractive index of glass (1.50) is higher than that of water (1.33), total internal reflection may occur when light goes from glass to water, if the conditions are right.

If Nwater = 1

If N_water = 1