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 Author Topic: illustrate refraction with dog running  (Read 6339 times) 0 Members and 1 Guest are viewing this topic. Click to toggle author information(expand message area).
Fu-Kwun Hwang
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 « Embed this message on: December 22, 2009, 10:14:49 pm »

The velocity of wave changes when wave move from one media into another media.
For light: The index of refraction is defined as $n=c/v$, where $c$ is the speed of light in vacuum, and $v$ is the speed of light in media.

The following animation use many dogs running from one region into another region.
Due to the condition on the ground , dogy's speed is different when running from one region into another region.
It obeys Snell's Law $n_1 \sin\theta_1 =n_2 \sin\theta_2$.

You can use $n_1,n_2$ slider to change speed of running dogs and c1 to change it moving direction.

Embed a running copy of this simulation

Embed a running copy link(show simulation in a popuped window)
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