The system response can be tested better with
- A. Sinusoidal input signal
- B. Unit impulse input signal
- C. Ramp input signal
- D. Exponentially decaying signal
Answer: B. Unit impulse input signal
Explanation: A unit impulse input signal contains all frequencies uniformly, making it theoretically the best input to find the complete frequency response (transfer function) of a linear time-invariant system.