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AP EAMCET202420 May 2024Morning ShiftPhysicsCommunication SystemActual

A carrier is simultaneously modulated by two sine waves with modulation indices of 0.3 and 0.4 ; then the total modulation index is

Options

  1. A1
  2. B0.12
  3. C0.5
  4. D0.7

Correct answer

C. 0.5

Step-by-step solution

₁=0.3, ₂=0.4 Total modulation index, = ₁^2+ ₂^2 = (0.3)^2+(0.4)^2 =0.5

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