The figure below shows the path of a beam of light through several layers with different indices of refraction. (Assume n4 = 1.10.) (a) If ?1 = 32.0°, what is the angle ?2 of the emerging beam? (b) What is the smallest incident angle ?1 to have total internal reflection at the surface between the medium with n = 1.20 and the medium with n4 = 1.10?

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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The figure below shows the path of a beam of light through several layers with different indices of refraction. (Assume n4 = 1.10.)

(a) If ?1 = 32.0°, what is the angle ?2 of the emerging beam?

(b) What is the smallest incident angle ?1 to have total internal reflection at the surface between the medium with n = 1.20 and the medium with n4 = 1.10?

0₁
02
n = 1.60
n = 1.40
n = 1.20
na
Transcribed Image Text:0₁ 02 n = 1.60 n = 1.40 n = 1.20 na
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