The standard second order system to a unit step input shows the 0.36 as the first peak undershoot, hence its second overshoot is:(a) 0.135(b) 0.216(c) 0.1296(d) 0.116This question was addressed to me during an online interview.My question is based upon Time Response of Second Order Systems topic in chapter Time Response Analysis, Design Specifications and Performance Indices of Control Systems

The standard second order system to a unit step input shows the 0.36 a

1.	The standard second order system to a unit step input shows the 0.36 as the first peak undershoot, hence its second overshoot is:(a) 0.135(b) 0.216(c) 0.1296(d) 0.116This question was addressed to me during an online interview.My question is based upon Time Response of Second Order Systems topic in chapter Time Response Analysis, Design Specifications and Performance Indices of Control Systems
Answer» The CORRECT option is (b) 0.216 For explanation I WOULD say: Overshoot and undershoot are calculated from the FORMULA of peak time as odd peaks denote the overshoot and even DENOTES the under shoot.

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