Two identical charged spheres are suspended by strings of equal lengths. The strings make an angle `30^(@)` with each other. When suspended in a liquid of density 0.8 `gm//cm^(3)`, the angle remains the same. If the density of the material of the sphere is 1.6 `gm//cm^(3)`, the dielectric constant of the liquid is :

Options

A. 1
B. 2
C. `sqrt(2)`
D. 3