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The angular frequency of the damped osci...

The angular frequency of the damped oscillator is given by `omega=sqrt((k)/(m)-(r^(2))/(4m^(2)))` ,where k is the spring constant, m is the mass of the oscillator and r is the damping constant. If the ratio `r^(2)//(m k)` is 8% ,the change in the time period compared to the undamped oscillator

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