1.

Two small spheres with mass m_(1) and m_(2) hang from massless insulating threads of length l_(1) and l_(2). The two spheres carry charges q_(1) and q_(2) respectively. The spheres are hung such that they are on the same horizontal level and the threads are inclined to the vertical at angles theta_(1) and theta_(1). Which of the condition is required if theta_(1)=theta_(2)?

Answer»

If `m_(1)=m_(2)`
`|q_(1)|=|q_(2)|`
`l_(1)=l_(2)`
`(q_(1))/(m_(1))=(q_(2))/(m_(2))`

ANSWER :A


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