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Which of the following frequencies will ...

Which of the following frequencies will be suitable for beyond the horizon communication using sky waves?

A

10 kHz

B

10 MHz

C

1 GHz

D

1000 GHZ

Text Solution

Verified by Experts

The correct Answer is:
b
Frequency of 10 KHz will require very large radiating antenna while frequencies 1GHz and 1000 GHz will penetrate the ionosphere and cannot be reflected by it.
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