ETC EngineeringMCQs
Home › Signals & Systems › The discrete-time Fourier transform X(e^(jω)) is periodic in ω with period?
MCQ Practice Question
Signals & SystemsDTFT

The discrete-time Fourier transform X(e^(jω)) is periodic in ω with period?

  • Aπ
  • B2π
  • C4π
  • DIt is not periodic
Report an error
Correct Answer: B. 2π
Explanation: The DTFT is periodic in angular frequency with period 2π because e^(-j(ω+2π)n)=e^(-jωn) for integer n.
Reference: Standard signals and systems: dtft
Continue practicing: Signals & Systems MCQs or browse all MCQs.