For a second order system œân is natural frequency, œâd is frequency of damped oscillations and Œ∂ is damping factor. Then

For a second order system œân is natural frequency, œâd is frequen

1.	For a second order system œân is natural frequency, œâd is frequency of damped oscillations and Œ∂ is damping factor. Then
A.	œâd = œân Œæ
B.	œâd = œân (1 - Œæ)2
C.	œâd = œân (1 - Œæ)0.5
D.	œâd = œân (1 - Œæ2)0.5
Answer» E.