Question
Which of the following frequencies will be suitable for beyond the horizon communication using sky waves?[NCERT Exemplar](a) $10 \mathrm{kHz}$(b) $10 \mathrm{Mlk}$(c) $1 \mathrm{GHz}$(d) $1000 \mathrm{GHz}$
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The frequency range for this type of propagation is from 3 MHz to 30 MHz. Show more…
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