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Two identical charged spheres of materia...

Two identical charged spheres of material density `rho`, suspended from the same point by inextensible strings of equal length make an angle `theta` between the string. When suspended in a liquid of density `sigma` the angle `theta` remains the same. The dielectric constant K of the liquid is

A

`rho/(rho-sigma)`

B

`(rho-sigma)/rho`

C

`rho/(rho+sigma)`

D

`(rho+sigma)/rho`

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The correct Answer is:
A
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MODERN PUBLICATION-ELECTRIC CHARGES AND FIELDS -COMPETITION FILE ( Objective Question (BB.MCQ))
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