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Question 20312
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Principles of Communication: Modulation MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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ModulationEasyQuestion 20312

Question

The carrier wave in communication is typically at a _____ frequency than the message signal.
  1. A
    Lower
  2. B
    Equal
  3. C
    Higher
    Correct
  4. D
    Variable

Correct answer

Higher

Explanation

Carrier frequency >> message frequency. Example: AM radio 1000 kHz carrier vs. 1 kHz audio; FM radio 100 MHz carrier vs. 15 kHz audio. The high carrier allows practical antenna sizes and avoids signal mixing.

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