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A particle of mass `2g` is initially displaced through `2cm` and then released. The frictional force constant due to air on it is `12 xx 10^(-3)N//m`. The restoring force constant is `50 xx 10^(-3)N//m`. If it is in oscillatory motion, its time period isA. `pi sec`B. `pi//2 sec`C. `2pi sec`D. `4pi sec` |
Answer» Correct Answer - B `gamma = (b)/(2m), omega_(o) = sqrt((k)/(m))` and time period `T = (2pi)/(sqrt(omega_(o)^(2)-gamma^(2)))` |
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