1.

A non conducting ring of radius R has uniformly distributed positive chargeq. A small particle of mass m and charge -q is placed on the axis of the ring at point P and released If R gt gt x. The particle will undergo oscillations along the axis of symmerty with an angular frequency that is equal to

Answer»

`sqrt((qQ)/(4piepsilon_(0)MR^(3)))`
`sqrt((qQx)/(4piepsilon_(0)mR^(4)))`
`(qQ)/(4piepsilon_(0)mR^(3))`
`(qQx)/(4piepsilon_(0)mR^(4))`

ANSWER :A


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