Question Bank MCQ • 1 Mark Section 3: Electromagnetic Theory Waveguides and radiation

QB_PH_083: Waveguides and radiation

Question Statement

Can TEM modes propagate in a hollow single-conductor metal waveguide?
(A) No, because hollow simply-connected pipe cannot support non-trivial electrostatic potential
(B) Yes, TEM is the dominant mode
(C) Yes, above cutoff
(D) Yes, with phase velocity < c
Correct Answer
A
Verified Key

Step-by-Step KaTeX Derivation & Detailed Explanation

### Solution: TEM mode requires two or more separate conductors.
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