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Question

Two identical charged particles are suspended in air by strings of equal length. The strings make an angle of 30 with each other. When suspended in a liquid of density 0.4g/cc the angle remains the same. The dielectric constant of the liquid is (given the density of the metal sphere is 0.8g/cc)

A
4
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B
2
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C
3
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D
5
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Solution

The correct option is B 2

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