We do not notice total internal reflection for regular glass store windows because
A) light travels slower in glass than in air.
B) glass does not have a suitable chemical makeup.
C) light travels too fast in glass.
D) glass is transparent and has no metal in it.

Question

Quizplus · Accepted Answer

Total internal reflection is not typically observed in store windows because it requires light to move from a medium in which it travels slower (like glass) to a medium in which it travels faster (like air), under certain angles. The phenomenon is not about the chemical makeup, speed of light in terms of its ultimate speed, or transparency/metal content, but about the relative speeds of light in different media and the angles of incidence.

We Do Not Notice Total Internal Reflection for Regular Glass