McqMate
| Q. |
When two LTI systems with impulse responses ha (t) and hb (t) are cascaded then equivalent response is given by |
| A. | h(t) = ha(t) + hb(t) |
| B. | h(t) = ha(t) – hb(t) |
| C. | h(t) = ha(t) hb(t) |
| D. | h(t) = ha(t) * hb(t) |
| Answer» D. h(t) = ha(t) * hb(t) | |
| Explanation: the equivalent impulse response of two systems connected in series (cascaded) is given by convolution of individual impulse responses. | |
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