Two positively charged sphere of masses `m_(1)` and `m_(2)` are suspended from a common point at the ceiling by identical insulating massless strings of length `l`. Charges on the two spheres are `q_(1)` and `q_(2)` respectively. Equilibrium both strings make the same angle `theta` with the vertical. then

Options

A. `q_(1)m_(2) =q_(2)m_(2)`
B. `m_(1)=m_(2)`
C. `m_(1)=m_(2) sin theta`
D. `q_(2)m_(1) = q_(1)m_(2)`

Answer

B

Explanation

`tan theta = (F)/(mg)(F rarr "same")`
`tan theta alpha (1)/(m) :. m_(1)=m_(2)`