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25-09-2021 Signals & Systems

Q. Y (t) = x (t/5) is _______

A. Compressed signal
B. Expanded signal
C. Time shifted signal
D. Amplitude scaled signal by factor 1/5

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Dapzoi Verified
Commented on 2021-09-25 13:11:54 (IST)
Answer: B

Explanation: y (t) = x (at), comparing this with the given expression we get a = 1/5. If 0<a<1 then it is expanded (stretched) version of x (t).