. Consider an air filled rectangular waveguide with a cross – sectio – McqOptions

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1.	. Consider an air filled rectangular waveguide with a cross – section of5 cm × 3 cm.For this waveguide, the cut off frequency (in MHz) of TE21mode is
A.	7.81 ghz
B.	9.01 ghz
C.	11.2 ghz
D.	6.89 ghz
Answer» B. 9.01 ghz

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