The diagram shows a scheme of two unequal masses, m_1=2 m and m_2=m having unequal positive charge on them. They are suspended by two mass-less…

The diagram shows a scheme of two unequal masses, $\displaystyle m_1=2 m$ and $\displaystyle m_2=m$ having unequal positive charge on them. They are suspended by two mass-less threads of unequal lengths from a common point such that, during equilibrium, $\displaystyle m_1$ and $\displaystyle m_2$ are on same horizontal level. Angle between two strings is $\displaystyle \theta=45^{\circ}$ in this position. Electrostatic force of interaction between the masses will be -