Warm-Up Exercise 26

Due 12:15 pm, Fri 26 Oct 2012

Physics 123, Fall 2012

Reading assignment: 35.6-35.8

Huygen's principle as stated in the textbook involves "wave fronts". What is a wave front?

The crest of the wave, repeated every wavelength

What does Snell's law have to do with total internal refraction?

TIR happens when Snellís law predicts that a refracted beam is impossible

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