How is the cutoff wavelength for a circular waveguide figured?

How is the cutoff wavelength for a circular waveguide figured?

A. 1.17 times the radius of the waveguide
B. 1.17 times the diameter of the waveguide
C. 1.71 times the diameter of the waveguide
D. 1.71 times the radius of the Waveguide

Show Answer

Answer: C

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