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JEE Main · 2023 · 10 Apr 2023 · Shift 2 · Semiconductors

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A message signal of frequency 3 kHz is used to modulate a carrier signal of frequency 1.5 MHz . The bandwidth of the amplitude modulated wave is
  1. (A)3 kHz
  2. (B)6 MHz
  3. (C)3 MHz
  4. (D)6 kHz✓ Correct

Answer: (D)

Solution

In amplitude modulation, the bandwidth is given by , where is the message signal frequency. Here, kHz, so bandwidth kHz.

JEE Main · 2023 · 10 Apr 2023 · Shift 2 · Single correct option

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