GATE Electronics and Communications (EC) 2011 Solved Paper

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Question : 23 of 65

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The modes in a rectangular waveguide are denoted by TE_mn/TM_mn where m and n are the eigen numbers along the larger and smaller dimensions of the waveguide respectively. Which one of the following statements is TRUE?

The TM₁₀ mode of the waveguide does not exist
The TE₁₀ mode of the waveguide does not exist
The TM₁₀ and the TE₁₀ modes both exist and have the same cut-off frequencies
The TM₁₀ and the TM₀₁ modes both exist and have the same cut-off frequencies

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