Question

Radio communication takes place due to which layer?
a) Stratosphere.
b) Mesosphere.
c) Troposphere.
d) Ionosphere.

Answer 1

D) Ionosphere is the right answer.

This is because a communication channel thousands of kilometers long can be established by successive reflections at the earth's surface and in the upper atmosphere. This ionospheric propagation takes place mainly in the HF band.

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Answer 2

The answer is Ionosphere.....

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