p34_056 - θ = 43 29 ◦ the refracted beam would be...

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56. (a) (b) and (c) The index of refraction n for fused quartz is slightly higher on the bluish side of the visible light spectrum (with shorter wavelength). We estimate n =1 . 463 for blue and n =1 . 456 for red. Since sin θ c =1 /n , the critical angle is slightly smaller for blue than it is for red: θ c = 43 . 12 for blue and θ c = 43 . 38 for red. Thus, at an angle of incidence of, say,
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Unformatted text preview: θ = 43 . 29 ◦ , the refracted beam would be depleted of blue (and would appear to an outside observer as reddish), and the reflected beam would consequently appear to be bluish (to someone able to observe that beam, the operational details of which are not discussed here)....
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

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