Two identical charged spheres are suspended by P strings of equal lengths. The strings make an ...

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Two identical charged spheres are suspended by
P strings of equal lengths. The strings make an

W angle of \( 30^{\circ} \) with each other. When suspended in a liquid of density \( 0.8 \mathrm{~g} \mathrm{~cm}^{-3} \), the angle remains the same. If density of the material of the sphere is \( 1.6 \mathrm{~g} \mathrm{~cm}^{-3} \), the dielectric constant of the liquid is
(A) 4
(B) 3
(C) 2
(D) 1
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