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

  • question_answer
    An FM radio station operating at \[630\text{ }kHz\] is permitted to broadcast audio frequencies up to\[\text{6 }kHz\]. The band pass filter in its modulation circuit can retain the frequencies

    A) \[636\,kHz,\text{ }630\,kHz\]

    B) \[12\,kHz,\text{ }6\,kHz\]

    C) \[1260\,kHz,6\,kHz\]

    D) \[1260kHz,\text{ }630kHz\]

    Correct Answer: A

    Solution :

    [a] Low pass filter allows \[624\text{ }kHz\] to pass and retains \[630\text{ }kHz\] and \[636\text{ }kHz\] frequencies.


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