Explanation of light refraction (and reflection) based on the Huygens
Principle:
- Clickable
Link One: The Huygens Principle, in
general;
- Clickable
Link Two: A Java applet, explaining the
refraction and reflection of a light wave crossing an interface between
two media with different refractive indices;
- Clickable
Link Three: Essentially, the same as in Link Two, but in the form of
a Youtube movie (11 minutes), with a spoken step-by-step
explanation.