TS EAMCET 19-July-2022 Shift 2 Solved Paper

Section: Physics

Question : 91 of 160

Marks: +1, -0

The amplitude of a damped oscillator varies with time as A(t)=A∘‌exp(−bt∕2m) where b=70g∕s and m=200g. How long does it take for the mechanical energy to drop to one - fourth of its initial value?
[ Take ln‌2=0.7]

2.0s
4.0s
2.5s
3.5s

Validate

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