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Communication — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsCommunication1 Mark
MCQ
When the modulating frequency is doubled, the modulation index is halved and the modulating voltage remains constant, the modulation system is
  • A
    Amplitude modulation
  • B
    Phase modulation
  • ✓
    Frequency modulation
  • D
    All of the above
✓

Answer

Correct option: C.
Frequency modulation

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