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GATE ECE 2001 | Question: 1.17

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The Nyquist plot for the open-loop transfer function $G(s)$ of a unity negative feedback system is shown in the figure, if $G(s)$ has no pole in the right-half of $s$-plane, the number of roots of the system characteristic equation in the right-half of $s$-plane is

  1. $0$
  2. $1$
  3. $2$
  4. $3$

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