η2 = ηair = 1
η1 = ηincident
θc,red - θc,violet = sin-1(1/ηred) - sin-1(1/ηviolet)
Consider a diamond surrounded by air.
A) By how much (in degrees) do the critical angles for total internal reflection differ for red (660 nm) light compared to violet (410 nm) light?
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