In Fig. 35-34, a light ray is incident at angle u1 ! 50 on
Chapter , Problem 10(choose chapter or problem)
In Fig. 35-34, a light ray is incident at angle u1 ! 50 on a series of five transparent layers with parallel boundaries. For layers 1 and 3, L1 ! 20 mm, L3 ! 25 mm, n1 ! 1.6, and n3 ! 1.45. (a) At what angle does the light emerge back into air at the right? (b) How much time does the light take to travel through layer 3?
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