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A student working with a spring mass system finds the values of mass, spring constant and damping constant in `CGS` unit as `90, 4.5xx10^(+3)` and `180` respectively. What will be the time period of the spring mass system ?A. `2pi//7`B. `14pi`C. `pi`D. `2pi//sqrt(50)` |
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Answer» Correct Answer - A A student ………….. For damped oscillation `omega = sqrt((K)/(m) - (b_(1)^(2))/(4m^(2)))` `omega = sqrt((4500)/(90) - (180xx180)/(4xx90xx90)) = sqrt(50-1) = 7` Time period `= (2pi)/(7)sec` . |
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