An electron is moving in a circular path...

An electron is moving in a circular path under the influence fo a transerve magnetic field of `3.57xx10^(-2)T`. If the value of `e//m` is `1.76xx10^(141) C//kg`. The frequency of revolution of the electron is

`1 GHz`

`100 MHz`

`62.8 MHz`

`6.28 MHz`

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