For a 2nd order feedback control system, the peak resonance magnitude should be Mp ≤ 1.15. Hence the

For a 2nd order feedback control system, the peak resonance magnitude should be Mp ≤ 1.15. Hence the damping ratio (δ) is 

(a) 0.1 (d) 0.5 (c) 0.707 (d) 1
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For a 2nd order feedback control system, the peak resonance magnitude should be Mp ≤ 1.15. Hence the damping ratio (δ) is 0.5

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