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Find the reflection coefficient of the wave passing through two media having intrinsic impedances of 4 and 9 respectively.(a) 0.5(b) 1(c) 0.38(d) 0.1The question was asked in semester exam.I want to ask this question from Reflection and Transmission Coefficients topic in division Transmission Lines of Electromagnetic Theory

Answer»

Right option is (c) 0.38

The BEST I can explain: The reflection coefficient in TERMS of intrinsic impedances is GIVEN by R = η2 – η1/η2 + η1. On substituting for η1 = 4 and η2 = 9, we get R = 9 – 4/9 + 4 = 5/13 = 0.38.



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