In 1943, the two German scientists Goos and Hänchen performed an experiment showing that in total internal reflection a light beam acquires a lateral shift; this can be seen as a positional ...

In this situation, the ray is reflected inside the more dense medium, following the law of reflection. This is called total internal reflection (TIR). The angle of incidence when the angle of ...

Name the process happening to the ray at the point X. There is no light emerging from the prism at Y. Name the process happening to the light at Y. How does the speed of light change, if at all ...