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61. (a) In the notation of this problem, Eq. 3347 becomes
θ
c
n
n
=
−
sin
1
3
2
which yields
n
3
=
1.39 for
c
=
φ
= 60°.
(b) Applying Eq. 3344 law to the interface between material 1 and material 2, we have
nn
21
30
°=
which yields
= 28.1°.
(c) Decreasing
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.
 Spring '08
 Any
 Physics

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