The electromagnetic waves of frequency 2 MHz | vedclass

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Question

(B) Electromagnetic waves in the frequency range of $2 \ MHz$ to $30 \ MHz$ are known as short waves or high-frequency $(HF)$ waves.These waves are re

Vedclass · Accepted Answer

Sky wave propagation

Vedclass · Answer

(B) Electromagnetic waves in the frequency range of $2 \ MHz$ to $30 \ MHz$ are known as short waves or high-frequency $(HF)$ waves.These waves are reflected back to the Earth by the ionosphere.This phenomenon of reflection by the ionosphere allows for long-distance communication,which is known as sky wave propagation.Therefore,the correct option is $(b)$.

The electromagnetic waves of frequency $2 \ MHz$ to $30 \ MHz$ are used in:

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