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The dominant mode in waveguide is the mode which has

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The dominant mode in waveguide is the mode which has

(a) Highest frequency

(b) Highest wavelength

(c) Lowest phase constant

(d) Highest attenuation

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Question is from Types of Waveguides topic in section Waveguides of Electromagnetic Theory

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Correct answer is (b) Highest wavelength

For explanation: The dominant mode is the mode which has the minimum frequency or maximum wavelength available for propagation of the waves.

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