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    Question

    What is found in frequency modulation?

    A Fixed frequency Correct Answer Incorrect Answer
    B Fixed dimension Correct Answer Incorrect Answer
    C Change in frequency and dimension Correct Answer Incorrect Answer
    D Change in dimension only Correct Answer Incorrect Answer

    Solution

    Frequency modulation (FM) conveys information over a carrier wave by varying its instantaneous frequency. This contrasts with amplitude modulation, in which the amplitude of the carrier is varied while its frequency remains constant. Frequency modulation is also used in telemetry, radar, seismic prospecting and newborn EEG seizure monitoring.

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