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

A

`M_1 ne M_2` , but `Q_1=Q_2`

B

`M_1=M_2`

C

`Q_1=Q_2`

D

`L_1=L_2`

Text Solution

Verified by Experts

The correct Answer is:
B
If charges are unequal even then electric force acting between them will be same for both. If their masses are different then we need different vertical components of tensions to balance their weights and in such a case the angle will vary for different masses.
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