Two small spheres of masses `M_(1)`and `M_(2)` are suspended by weightless insulating
Channel: Doubtnut
Date: 23/08/2020

Two small spheres of masses `M_(1)`and `M_(2)` are suspended by weightless insulating threads of lengths `L_(1)` and `L_(2)`. The speres carry charges `Q_(1)` and `Q_(2)` respectively. The spheres are suspended  such that they are in level  with one another adn the threads are inclined  to the verticle  at angles `theta_(1)` and `theta_(2)`respectively . Which one of the following conditions is essential for `theta_(1) = theta_(2)` ?