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.A. (a) `t=2t_(0)`B. (b) `t=t_(0)/2`C. (c ) `t=t_(0)`D. (d) `t=4t_(0)`

The bob of a simple pendulum executm simple harmonic motion in water w

1.	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.A. (a) `t=2t_(0)`B. (b) `t=t_(0)/2`C. (c ) `t=t_(0)`D. (d) `t=4t_(0)`
Answer» Correct Answer - A (a) `t2pisqrtl/(g_(eff), t_(0)2pisqrtl/g` `mg_(eff)=mg-Bmy-Vxx100xxg` :. G_(eff=g-(100)/(m/v)g=g=(1000)/(4/3xx1000)g=g/4` :. T=2pisqrtl/(g//4)` `t=2t_(0)`.

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