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The transmission coefficient of a wave propagating in the Brewster angle is

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The transmission coefficient of a wave propagating in the Brewster angle is

(a) 0

(b) 1

(c) -1

(d) Infinity

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Question is taken from Brewster Angle topic in portion EM Wave Propagation of Electromagnetic Theory

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Right answer is (b) 1

The explanation is: The transmission coefficient is the reverse of the reflection coefficient. At Brewster angle, the reflection will be zero. Thus the transmission is T = 1-R. Since R = 0, T = 1. It is to be noted that T and R lies in the range of 0 to 1.

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