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Two small spheres of masses M(1) and M(2...

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

A

If `m_(1)=m_(2)`

B

`|q_(1)|=|q_(2)|`

C

`l_(1)=l_(2)`

D

`(q_(1))/(m_(1))=(q_(2))/(m_(2))`

Text Solution

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The correct Answer is:
A
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