1.

Three equal charges +q are placed at the three vertices of an equilateral triangle centered at the origin.They are held in equilibrium by a restoring force of magnitude F(r) = kr directed towards the origin, where k is a constant.What is the distance of the three charges from the origin ?

Answer»

`[(1)/(6piepsilon_(0))(Q^(2))/(K)]^(1//2)`
`[(sqrt(3))/(12piepsilon_(0))(q^(2))/(k)]^(1//2)`
`[(1)/(6piepsilon_(0))(q^(2))/(k)]^(2//3)`
`[(sqrt(3))/(4piepsilon_(0))(q^(2))/(k)]^(2//3)`

Answer :B


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