Signals and Systems - Section 1
Signals and Systems - Section 1
is the Laplace transform of f(t) then f(0+) is
| 2. | If f(t) = A d(t - a), F(s) is |
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Answer: Option A Explanation: It is an impulse having area A and originating at t = a. |
| 3. | Double integration of a unit step function would lead to |
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, the coefficient of term e-t in f(t) will be
| 5. | Which one is a causal system? |
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Answer: Option A Explanation: For causal output must depend upon Present and past not on future. |
| 6. | As per time displacement theorem in Laplace transformation, displacement in the time domain by T becomes |
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Answer: Option D Explanation: £f(t - T) = e-st F(s). |
| 7. | An impulse function consist of |
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Answer: Option C Explanation: Because F.T. of δ(t) = 1, 1 is a Constant function ranging from -∞ to +∞. |
| 8. | ||||||||
Answer: Option A Explanation: (s + 1) term will give e-t and (s + 2) term will give e-2t . |
, the terms in f(t) will have