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```				   The amplitude of a damped osscilator is become half on one minute.The amplitude after 3 minute will be 1/X times the original where X is
```

6 years ago

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```										Dear Pallavi
Equation of under damped vibration is given as
y=Ye-ξωnt sin(wdt +Φ )
where c  is a amplitude at perticular time
at t=1 sec

Y/2 =Ye-ξωn
or 1/2 =e-ξωnt

now at t= 3 sec
Y'=Ye-ξωn3
=Y(1/2)3
=Y/8

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6 years ago

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