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

  • question_answer
    An FM signal has a resting frequency of \[105\text{ }MHz\] and highest frequency of \[105.03\text{ }MHz\] when modulated by a signal of frequency \[5\text{ }kHz.\]The carrier swing is

    A) \[25\,kHz\]

    B) \[54\,kHz\]

    C) \[60\,kHz\]

    D) \[75\,kHz\]

    Correct Answer: C

    Solution :

    [c] Carrier Swing \[=2\times \Delta f\] \[=2\times 105.03-105=2\times 0.03\,MHz\] \[=~60\text{ }kHz\]


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