Q160 / 160 · TS EAMCET 2020 (14 Sep Shift 1) · Physics

The function of a detector is to demodulate the modulated carrier wave and the steps for this process are

  • A
    demodulation and filtering
  • B
    demodulation and rectification
  • Correct answer
    C
    rectification and filtering
  • D
    regeneration and filtering

Solution

In demodulation process, the detector performs following functions. (a) Rectification To convert all the negative going peaks into positive going peaks, effectively doubling the frequency of the carrier in modulated wave. b) Filtering Separation of AC and DC.

Hence, the correct answer is option: 'C'.

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