Copia de Example of Snell's Law of Refraction
Snell's Law states: .
Where v is the velocity in a medium such as air or water, n is the refractive index of the medium, and \theta; is the angle of refraction.
This is a demonstration program of [url=http://en.wikipedia.org/wiki/Snell%27s_law]Snell's Law of Refraction[\url].
Roland Moutal, adopted by A B Cron, Created with GeoGebra