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Question: Answered & Verified by Expert
Modulation is a process of superposing
PhysicsCommunication SystemMHT CETMHT CET 2020 (20 Oct Shift 1)
Options:
  • A low frequency radio signal on low frequency audio waves.
  • B high frequency audio signal on low frequency radio waves.
  • C low frequency audio signal on high frequency radio waves.
  • D high frequency radio signal on low frequency audio signal.
Solution:
2153 Upvotes Verified Answer
The correct answer is: low frequency audio signal on high frequency radio waves.
Low frequency audio signal cannot be transmitted as such over long distances. Therefore. to overcome this difficulty, the low frequency audio signal is superposed on a high frequency wave (carrier wave). This process is called modulation.

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