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JEE Main · 2022 · 28 Jul 2022 · Shift 1 · Semiconductors

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In the case of amplitude modulation to avoid distortion the modulation index ( ) should be :
  1. (A)✓ Correct
  2. (B)
  3. (C)
  4. (D)

Answer: (A)

Solution

The modulation index (ratio of message amplitude to carrier amplitude) must satisfy to avoid distortion. If , over-modulation occurs, causing interference between carrier and message frequencies.

JEE Main · 2022 · 28 Jul 2022 · Shift 1 · Single correct option

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