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A simple pendulum has a time period T. The pendulum is completely immersed in a non-viscous liquid, whose density is 1/10th of that of the material of the bob. The time period of the pendulum is immersed in the liquid is?

A simple pendulum has a time period T. The pendulum is completely immersed in a non-viscous liquid, whose density is 1/10th of that of the material of the bob. The time period of the pendulum is immersed in the liquid is? Correct Answer √(10/9) T

In air, T=2π√(l/g) Let ρ be the density of the bob material. When the bob is immersed in a non-viscous liquid of density ρ0=ρ/10, time period becomes T=2π√(l/(1-(ρ0/ρ))g)=2π√(l/(9/10)g) T=√(10/9) T.

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1. the acceleration is zero when the bob passes through the mean position.
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4. the amplitude of oscillation of the simple pendulum decreases with time.
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1. depends on the length of the pendulum, L.
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