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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

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

Grade:12

1 Answers

Badiuddin askIITians.ismu Expert
147 Points
11 years ago

Dear Pallavi

Equation of under damped vibration is given as

y=Ye-ξωnt sin(wdt +Φ )

where 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

 so X=8 answer


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Badiuddin


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