GATE 2023 EE Q.27: official answer

GATE 2023 · EEQ.27 · 1 mark · MSQ

Which of the following statement(s) is/are true?

(A)
If an LTI system is causal, it is stable
(B)
A discrete time LTI system is causal if and only if its response to a step input $u [n]$ is 0 for $n < 0$
(C)
If a discrete time LTI system has an impulse response $h [n]$ of finite duration the system is stable
(D)
If the impulse response $0 < ∣ h [n] ∣ < 1$ for all $n$ , then the LTI system is stable.

See the question in the paper

Official answer