A dominant mode of a waveguide is characterized by lowest:1. Cut-off frequency2. Cut-off wavelength3. Attenuation

A dominant mode of a waveguide is characterized by lowest:1. Cut-off f

1.	A dominant mode of a waveguide is characterized by lowest:1. Cut-off frequency2. Cut-off wavelength3. Attenuation
A.	1 only
B.	1 and 3 only
C.	2 and 3 only
D.	1, 2 and 3
Answer» B. 1 and 3 only

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A dominant mode of a waveguide is characterized by lowest:1. Cut-off frequency2. Cut-off wavelength3. Attenuation

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