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Physics Question on Moment Of Inertia

A dipole of dipole moment 'P' and moment of inertia I is placed in a uniform electric field E→\overrightarrow{E}. If it is displaced slightly from its stable equilibrium position, the period of oscillation of dipole is

A

PE1\sqrt\frac{PE}{1}

B

2π1PE2\pi\sqrt\frac{1}{PE}

C

12πPE1\frac{1}{2\pi}\sqrt\frac{PE}{1}

D

π1PE\pi\sqrt\frac{1}{PE}

Answer

2π1PE2\pi\sqrt\frac{1}{PE}

Explanation

Solution

The correct option is (B): 2π1PE2\pi\sqrt\frac{1}{PE}