p34_101 - rials 2 and 3, so it becomes greater than the...

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101. (a) We note that the complement of the angle of refraction (in material 2) is the critical angle. Thus, n 1 sin θ = n 2 cos θ c = n 2 s 1 µ n 3 n 2 2 = q n 2 2 n 2 3 leads to θ =51 . 1 . (b) Reducing θ leads to an increase of the angle with which the light strikes the interface between mate-
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Unformatted text preview: rials 2 and 3, so it becomes greater than the critical angle. Therefore, there will be no transmission of light into material 3....
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