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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 10 MHz will suffer from antenna problem. Frequency of 1 GHz and 1000 GHz have so high penetration power that the earth would absorb them.
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