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Question

Two charged spheres separated at a distance d exert a force F on each other. If they are immersed in a liquid of dielectric constant 2, then what is the force (if all conditions are same)

A

\frac{F}{2}

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B

F

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C

2F

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D

4F

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Solution

The correct option is A $\frac{F}{2}$

$F \propto \frac{1}{K} i . e . \frac{F_{m e d i u m}}{F_{a i r}} = K$

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