The main difference between operation of a transmission lines and wave

1.	The main difference between operation of a transmission lines and waveguide is that
A.	The latter are not distributed like transmission line
B.	The former can use stubs and quarter wave transformers unlike the latter
C.	Transmission lines use the principal mode of propagation and, therefore, don't suffer from low frequency cut-off
D.	Terms such as impedance matching and standing wave ratio can't be applied to waveguide
Answer» D. Terms such as impedance matching and standing wave ratio can't be applied to waveguide

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The main difference between operation of a transmission lines and waveguide is that

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