Signals and Systems - Engineering

Q1:

A signal is sampled at Nyquist rate fs = 2f0. The function can be recovered from its samples only. If it is a

A Periodic square wave of fundamental frequency f0

B Triangular wave of fundamental frequency f0

C Periodic sine wave of fundamental frequency f0

D Unit impulse function

ANS:C - Periodic sine wave of fundamental frequency f0

Nyqist theorem is defined with respect to sinusoidal signal.