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Old Dec 2nd 2010, 10:07 PM   #1
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Question Is Snell's law of refraction a derived ?

one or an emperical one?
Can you help me find it derivation,
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Old Dec 5th 2010, 12:04 PM   #2
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Is Snell's law of refraction a derived ?

Apparently it can be derived from Fermat's principle of least time which states that a beam of light will travel along the shortest path between two points. The path defined by Snell's law is that shortest path.

Historically it seems that it was first derived on empirical grounds.
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Old Jan 13th 2011, 05:55 AM   #3
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this may help

Snell's law - Wikipedia, the free encyclopedia
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