In amplitude modulation, (a) amplitude remains constant but frequency. changes according to information signal (b) amplitude of carrier wave changes according to information signal (c) both amplitude and frequency changes according to information signal (d) both amplitude and frequency do not change according to information signal

Answer: (b). In AM, the carrier frequency is kept constant. The amplitude of the carrier is varied according to the instantaneous value of the message signal. So the answer is (b).

In amplitude modulation, | MHT CET 2020 (16 Oct, Shift 1)

Q20MHT CET 2020 · 16 OCT · SHIFT 1Easy

Electromagnetic Spectrum & Atmosphere

In amplitude modulation,

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Answer: (b)

In AM, the carrier frequency is kept constant.
The amplitude of the carrier is varied according to the instantaneous value of the message signal.
So the answer is (b).

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