The propagation of TE10 mode in a rectangular waveguide

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The propagation of TE₁₀ mode in a rectangular waveguide is used to excite a circular waveguide as shown in figure I and figure II. The mode excited in
the circular waveguide of figure I and figure II will be respectively—

1. TE₁₁ and TM₀₁
2. TM₀₁ and TE₁₁
3. TE₀₁ and TM₀₁
4. TM₀₁ and TE₀₁

Correct Option: A

NA