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electronics and communication engineering electromagnetic field theory
1. For a rectangular waveguide (a x b, a > b) to support only the TE10 mode at wavelength which one of the following pairs of in equalities is to be satisfied?
(A): a < λ < 2b; λ > 2a
(B): a < λ < 2b; λ < 2a
(C): b < λ < 2b; λ > 2a
(D): b < λ < 2b; λ < 2a
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