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The line A A' is on charged infinite con...

The line A A' is on charged infinite conducting plane which is perpendicular to the plane of the paper. The plane has a surface density of charge of magnitude q. B is connected by string from a point on the line A A'. The tangent of angle `(theta)` formed between the line A A' and the string is

A

`(q sigma)/(2epsi_(0)mg)`

B

`(q sigma)/(4pi epsi_(0) mg)`

C

`(q sigma)/(2pi epsi_(0) mg)`

D

`(q sigma)/(epsi_(0) mg)`

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The correct Answer is:
A
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