A second order system with no zeros has its poles located

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A second order system with no zeros has its poles located at – 3 + j4 and – 3 – j4 in the s-plane. The undamped natural frequency and the damping factor of the system are respectively—

1. 4 rad/sec and 0.75
2. 3 rad/sec and 0.60
3. 5 rad/sec and 0.80
4. 5 rad/sec and 0.60

Correct Option: A

NA