Which of the following represents the phase associated with the frequency component of discrete-time Fourier series(DTFS)?(a) e^j2πkn/N(b) e^-j2πkn/N(c) e^j2πknN(d) none of the mentionedThis question was posed to me during an interview.This question is from Frequency Analysis of Discrete Time Signal in section Frequency Analysis of Signals and Systems of Digital Signal Processing

Which of the following represents the phase associated with the freque

1.	Which of the following represents the phase associated with the frequency component of discrete-time Fourier series(DTFS)?(a) e^j2πkn/N(b) e^-j2πkn/N(c) e^j2πknN(d) none of the mentionedThis question was posed to me during an interview.This question is from Frequency Analysis of Discrete Time Signal in section Frequency Analysis of Signals and Systems of Digital Signal Processing
Answer» Right option is (a) E^j2πkn/N For explanation: We know that, x(n)=\(\sum_{k=0}^{N-1}c_k e^{j2πkn/N}\) In the above equation, ck REPRESENTS the amplitude and e^j2πkn/N represents the phase associated with the FREQUENCY component of DTFS.

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