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Question 20220
JEE Physics · Medium

Principles of Communication: Modulation MCQ

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ModulationMediumQuestion 20220

Question

In amplitude modulation (AM), which parameter of the carrier wave changes?
  1. A
    Frequency
  2. B
    Phase
  3. C
    Amplitude
    Correct
  4. D
    Speed

Correct answer

Amplitude

Explanation

AM: carrier amplitude ∝ instantaneous message amplitude. Carrier frequency and phase remain constant.

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