A damped harmonic oscillator has a frequency of 5 oscillations per second. The amplitude drops t...

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A damped harmonic oscillator has a frequency of 5 oscillations per second. The amplitude drops to half its value for every 10 oscillations. The time it will take to drop to \( \frac{1}{1000} \) of the original amplitude is close to
(a) \( 20 \mathrm{~s} \)
(b) \( 50 \mathrm{~s} \)
(c) \( 100 \mathrm{~s} \)
(d) \( 10 \mathrm{~s} \)
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