Exam Questions Papers - Engineering

Q1:

A discrete time linear shift-invariant system has an impulse response h[n] with h[0] = 1, h[1] = - 1, h[2] - 2, and zero otherwise. The system is given an input sequence x[n] with x[0] - x[2] - 1, and zero otherwise. The number of nonzero samples in the output sequence y[n], and the value of y[2] are, respectively

A 5, 2

B 6, 2

C 6, 1

D 5, 3

ANS:D - 5, 3

Use convolution to get the result.