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1. The modulation index of a narrowband FM signal is





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MCQ->An AM signal and a narrowband FM signal with identical carriers, modulating signals and modulation index of 0.1 are added together. The resultant signal can be closely approximated by....
MCQ->Assertion (A): If a carrier is modulated by three sine waves and m1, m2, m3 are the modulation indices, the total modulation index mt is mt = (m12 + m22 + m32)0.5Reason (R): An AM, higher the level of modulation, lower is the audio power required to produce modulation.

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MCQ->The modulation index of a narrowband FM signal is....
MCQ->In FM signal with a modulation index mf is passed through a frequency tripler. The wave in the output of the tripler will have a modulation index of....
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