Question
a.
must be more than cutoff frequency of TE₁₀ mode
b.
must be less than cutoff frequency of TE₂₀ mode
c.
must be more than cutoff frequency of TE₁₀ mode and less than cutoff frequency of TE₂₀ mode
d.
must be less than cutoff frequency of TE₁₀ mode
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Q. To ensure that only dominant TE₁₀ mode propagates in a rectangular waveguide, the operating frequency
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