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The bob of a simple pendulum executm sim...

The bob of a simple pendulum executm simple harmonic motion in water with a period t, while the period of oscillation of the bob is `t_(0)` in air. Negleting frictional force of water and given that the density of the bob is (4//3)xx1000 kg//m^(3).
What relationship between t and `t_(0)` is true.

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