Theory of Machine
Bifilar suspension method is used to find the

Periodic time of the body
Frequency of vibration of the body
Moment of inertia of the body
Angular acceleration of the body

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Theory of Machine
The maximum fluctuation of energy is the

Ratio of the mean resisting torque to the work-done per cycle
Difference between the maximum and minimum energies
Variations of energy above and below the mean resisting torque line
Sum of the maximum and minimum energies

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