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Uttarakhand PMT Uttarakhand PMT Solved Paper-2008

  • question_answer
    Beyond which frequency, the ionosphere bends any incident electromagnetic radiation but do not reflect it back towards the earth?

    A)  50MHz       

    B)  40MHz

    C)  30MHz       

    D)  20MHz

    Correct Answer: B

    Solution :

     The ionosphere can reflect electromagnetic waves of frequency less than 40 MHz but do not reflect electromagnetic waves of frequency more than 40 MHz.


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