Question:
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 $800\, kg \,m ^{-3}$ and dielectric constant $21$. If the angle between the strings remains the same after the immersion, then
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 $800\, kg \,m ^{-3}$ and dielectric constant $21$. If the angle between the strings remains the same after the immersion, then
Updated On: Apr 9, 2025
- electric force between the spheres remains unchanged
- electric force between the spheres reduces
- mass density of the spheres is $840 \,kg\, m ^{-3}$
- the tension in the strings holding the spheres remains unchanged
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The Correct Option is A, C
Solution and Explanation
(A) electric force between the spheres remains unchanged
(C) mass density of the spheres is $840 \,kg\, m ^{-3}$
(C) mass density of the spheres is $840 \,kg\, m ^{-3}$
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