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12th Class Physics Communication System / संचार तंत्र Question Bank Communication Systems Conceptual Problems

  • question_answer
    Modulation is used to : (a) reduce the bandwidth used. (b) separate the transmissions of different users. (c) ensure that intelligence may be transmitted to long distances. (d) allow the use of practical antennas.

    Answer:

                    (a), the use of high frequency carrier wave reduces the bandwidth.


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