For transverse electric waves between parallel plates, the lowest value of m, without making all the field components zero, is equal to

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ESE Electronics 2014 Paper 1: Official Paper
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  1. 3
  2. 2
  3. 1
  4. 0

Answer (Detailed Solution Below)

Option 3 : 1
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ST 1: UPSC ESE (IES) Civil - Building Materials
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Detailed Solution

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Concept:

For parallel plate waveguide, the propagation constant is defined as:

a = distance between the plates

Where the minimum value of m = 1

Cut-off frequency for the parallel plate waveguide is given by:

The wavelength will be:

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