JEE Main & Advanced Physics Communication System / संचार तंत्र Question Bank Self Evaluation Test - Communication System

  • question_answer
    Which of the following frequencies will be suitable for beyond-the horizon communication using sky waves?

    A) \[10\text{ }kHz\]

    B) \[10\text{ M}Hz\]

    C) \[\text{1 G}Hz\]

    D) \[\text{1000 G}Hz\]

    Correct Answer: B

    Solution :

    [b] \[10\text{ }kHz\] cannot be radiated (antenna size), \[1\text{ }GHz\] and \[1000\,GHz\] will penetrate.


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