JEE Main & Advanced Physics Communication System / संचार तंत्र JEE PYQ-Communication System

  • question_answer
    For sky wave propagation, the radio waves must have a frequency range in between: [JEE ONLINE 12-04-2014]

    A) MHz to 2 MHz

    B) 5 MHz to 25 MHz

    C) 35 MHz to 40 MHz

    D) 45 MHz to 50 MHz

    Correct Answer: B

    Solution :

    [b] Sky wave propagation is suitable for frequency range 5 MHz to 25 MHz.


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