Reflection and Refraction

Source: Derek Wilson,Asantha Cooray, PhD, Department of Physics & Astronomy, School of Physical Sciences, University of California, Irvine, CA

Light travels at different speeds depending on the material through which it is propagating. When light travels from ...

Light reflects and travels at different speeds and direction, or refracts, depending on the material through which it is propagating, causing many interesting optical phenomena.

When a ray of light strikes the surface of a glass block, a part of it changes direction at the interface to return into the medium from which it originated; this ...