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JEE Main & Advanced Physics Communication System / संचार तंत्र Question Bank Mock Test - Electronic Devices Communication Systems

  • question_answer
    In an FM system a 7 kHz signal modulates 108 MHz carrier so that frequency deviation is 50 kHz. The carrier swing is

    A) 7.143   

    B) 8

    C) 0.71                 

    D) 350

    Correct Answer: A

    Solution :

    [a] Carrier swing \[=\frac{\text{Frequency}\,\,\text{deviation}}{\text{Modulating}\,\,\text{frequency}}=\frac{50}{7}=7.143\]


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