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NEET Sample Paper NEET Sample Test Paper-20

  • question_answer
    Three waves A, B, and C of frequencies 1600 kHz, 5 MHz, and 60 MHz, respectively are to be transmitted from one place to another. Which of the following is the most appropriate mode of communication:

    A)  A is transmitted via space wave while B and C are transmitted via sky wave.

    B)  A is transmitted via ground wave, B via sky wave and C via space wave.

    C)  B and C are transmitted via ground wave while A is transmitted via sky wave.

    D)  B is transmitted via ground wave while A and C are transmitted via space wave.

    Correct Answer: B

    Solution :

    For ground wave propagation, the frequency range is 530 kHz to 1710 kHz. For sky wave propagation, the frequency range is 1710 kHz to 40 MHz. For space wave propagation, the frequency range is 54 MHz to 4.2 GHz. Thus option (b) is correct. Hence, the correction option is (b).


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