Frequencies in the Uhf Range Normally Propagate by Means Of: - Physics

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Frequencies in the UHF range normally propagate by means of:

(a) Ground waves.

(b) Sky waves.

(c) Surface waves.

(d) Space waves.

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(d) Answer:

Space waves

Owing to its high frequency, an ultra high frequency (UHF) wave can neither travel along the trajectory of the ground nor can it get reflected by the ionosphere. The signals having UHF are propagated through line-of-sight communication, which is nothing but space wave propagation.

Concept: Bandwidth of Signals
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NCERT Class 12 Physics Textbook
Chapter 15 Communication Systems
Exercise | Q 2 | Page 530

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