Official PYQ · 2022Set 1 · Q36LTI SystemsMSQ2 marks

GATE EC 2022 Set 1 Q36 — LTI Systems

The outputs of four systems $(S_{1}, S_{2}, S_{3},$ and $\text{S}_{4})$ corresponding to the input signal $\sin(t),$ for all time $t,$ are shown in the figure.

Based on the given information, which of the four systems is/are definitely $\text{NOT LTI}$ (linear and time-invariant)?

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Answer: C;D

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Published 10 Oct 2026

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