Electrical Engineering > GATE 2018 > Sampling
Consider the two continuous-time signals defined below:
These signals are sampled with a sampling period of T = 0.25 seconds to obtain discrete-time signals x1[n] and x2[n], respectively. Which one of the following statements is true?
A
The energy of x1[n] is greater than the energy of x2[n].
B
The energy of x2[n] is greater than the energy of x1[n].
C
x1[n] and x2[n] have equal energies.
D
Neither x1[n] nor x2[n] is a finite-energy signal.

Correct : a

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