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The reflection coefficient, when a resonant cavity is placed between the waveguide is

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in Electromagnetic Theory by (188k points)
The reflection coefficient, when a resonant cavity is placed between the waveguide is

(a) 0

(b) 1

(c) -1

(d) Infinite

I had been asked this question in an international level competition.

Origin of the question is Transverse Magnetic Waves(TM) in division Waveguides of Electromagnetic Theory

1 Answer

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Best answer
Right choice is (b) 1

Best explanation: When the waveguide is shorted by conducting plates, the reflection coefficient will be unity. This will lead to the occurrence of standing waves.

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