Question

Two identical charged spheres are suspended by strings of equal lengths. The strings make an angle of with each other. When suspended in a liquid of density 0.8 , the angle remains the same. lf density of the material of the sphere is 1.6 , the dielectric constant of the liquid is:

A

4

B

3

C

2

D

1

Medium
JEE Mains

Solution

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Correct option is
C

2

From fig,



.....[ is the volume]...........(1)

When system is suspended in liquid,

 

......(2)

 from (1) and (2) we get,

 

Dielectric constant of liquid.

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