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JEE Main 10 Apr 2019 Paper 1 Solved Paper

Section: Physics
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Question : 30 of 90
 
Marks: +1, -0
The displacement of a damped harmonic oscillator is given by x(t)=e−0.1t‌cos(10πt+Φ) Here t it is in seconds.The time taken for its amplitude of vibration to drop to half of its initial value is close to:
[10 Apr 2019 Shift 1]
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