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The main difference between the operation of transmission lines and waveguides is that—
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- The latter are not distributed, like transmission lines
- The former can use stubs and quarter-wave transformers, unlike the latter
- Transmission lines use the principal mode of propagation, and therefore do not suffer from low-frequency cutoffs
- Terms such as impedance matching and standing wave ratio cannot be applied to waveguides
Correct Option: C
The main difference between the operation of transmission lines and waveguides is that transmission lines use the principal mode of propagation and therefore do not suffer from low-frequency cut-off.
