Q80 / 90 · JEE Main 2022 (26 Jun Shift 1) · Physics

Choose the correct statement for amplitude modulation

A
Amplitude of modulating signal is varied in accordance with the information signal.
B
Amplitude of modulated signal is varied in accordance with the information signal.
Correct answer
C
Amplitude of carrier signal is varied in accordance with the information signal.
D
Amplitude of modulated signal is varied in accordance with the modulating signal.

Solution

Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting messages with a radio wave. In amplitude modulation, the amplitude (signal strength) of the carrier wave is varied in proportion to that of the information signal.

Hence, the correct answer is option: 'C'.

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