1. The Closed loop transfer function of certain second order unity feedback control system are given below. Determine the type of damping in the system.

(𝑎) 𝐶(𝑠)/𝑅(𝑠) =8/(𝑠^2+3𝑠+8)

(𝑏) 𝐶(𝑠)/𝑅(𝑠) =2/(𝑠^2+4𝑠+2)

(𝑐) 𝐶(𝑠)/𝑅(𝑠) =2/(𝑠^2+2𝑠+1)

(𝑑) 𝐶(𝑠)/𝑅(𝑠) =4/(𝑠^2+16)

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