Discussion Forum : Communication Systems
Question -


The electromagnetic waves of frequency 2 MHz to 30 MHz are

Options:
A .   In ground wave propagation
B .   In sky wave propagation
C .   In microwave propagation
D .   In satellite communication
E .   If assertion is false but reason is true.
Answer: Option B
:
B
The EM waves of frequency from 2MHz to 30 MHz are reflected from the  ionized upper layers of earth's  atmosphere and hence the sky wave propagation

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