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GATE ECE 2003 | Question: 71

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A second-order system has the transfer function

$\frac{C(s)}{R(s)}=\frac{4}{s^{2}+4 s+4}$.

With $r(t)$ as the unit-step function, the response $c(t)$ of the system is represented by
 

  1. Fig. $(a)$
  2. Fig. $(b)$
  3. Fig. $(c)$
  4. Fig. $(d)$

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