Question 11

Two identical non-conducting solid spheres of same mass and charge are suspended in air from a common point by two non-conducting, massless strings of same length. At equilibrium, the angle between the strings is $$\alpha$$. The spheres are now immersed in a dielectric liquid of density 800 kg m$$^{โˆ’3}$$ and dielectric constant 21. If the angle between the strings remains the same after the immersion, then


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