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What happens to the output of an LTI system when the input is delayed by t 0?
Question

What happens to the output of an LTI system when the input is delayed by t 0?

A.

The output is scaled by t0

B.

The output remains unchanged

C.

The output is delayed by t0

D.

The output becomes zero

Correct option is C

For a Linear Time-Invariant (LTI) system, one of the fundamental properties is time invariance.If: Input x(t) produces output y(t)Then: A delayed input x(tt0) produces a delayed output:y(tt0)So, delaying the input by t0 results in the output being delayed by the same amount, with no change in shape or amplitude.\text{For a Linear Time-Invariant (LTI) system, one of the fundamental properties is time invariance.} \\[8pt]\text{If:} \\[6pt]\bullet \ \text{Input } x(t) \text{ produces output } y(t) \\[8pt]\text{Then:} \\[6pt]\bullet \ \text{A delayed input } x(t - t_0) \text{ produces a delayed output:} \\[6pt]y(t - t_0) \\[10pt]\text{So, delaying the input by } t_0 \text{ results in the output being delayed by the same amount, with no change in shape or amplitude.}​​

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