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

  • question_answer
    100% modulation in FM means ,

    A) actual frequency deviation > maximum allowed frequency deviation

    B) actual frequency deviation = maximum allowed frequency deviation

    C) actual frequency deviation > maximum allowed frequency deviation

    D) actual frequency deviation < maximum allowed frequency deviation

    Correct Answer: B

    Solution :

    [b] \[m=\frac{actual\text{ }frequency\text{ }deviation}{max.\text{ }allowed\text{ }frequency\text{ }deviation}\times 100%\] \[=\frac{(\Delta f)\,actual}{(\Delta f)\max }\times 100%\] if  \[(\Delta f)\,actual=(\Delta f)\,\max \] \[m=100%\]


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