MCQ
Sky wave propagation is not possible for frequencies
  • A
    equal to $30\, MHz$
  • B
    less than $30\, MHz$
  • greater than $30\, MHz$
  • D
    None of these

Answer

Correct option: C.
greater than $30\, MHz$
c
Sky wave propagation is not possible for frequency $> 30\, MHz$ because they are not reflected by ionosphere

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