ISRO Electrical Engineering (EE) 2013 - Question 10

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An impulse function consists of

  • A. entire frequency range with same relative phase
  • B. infinite bandwidth with linear phase variation
  • C. pure DC
  • D. large DC with weak harmonics

Answer: A. entire frequency range with same relative phase

Explanation: The Fourier transform of δ(t) is 1: flat magnitude over all frequencies with zero (same) phase.

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