Theory of Machine
The minimum periodic time of a compound pendulum is

(1/2π). √(kG/g)
2π. √(2kG/g)
2π. √(kG/g)
(1/2π). √(2kG/g)

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Theory of Machine
Oldham's coupling is the

Third inversion of double slider crank chain
Third inversion of slider crank chain
Second inversion of single slider crank chain
Second inversion of double slider crank chain

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