When two electrons enter into a magnetic field with different velocities, they deflect in different circular paths, in such a way that the radius of one path is double that of the other. `1 xx 10^7 ms^(-1) ` is the velocity of the electron in smaller circle of radius `2 xx 10^(-3) m`. The velocity of electron in the other circular path is :

Options

A. `4 xx 10^(-7) ms^(-1)`
B. `4 xx 10^6 ms^(-1)`
C. `2 xx 10^(-7) ms^(-1)`
D. `2 xx 10^6 ms^(-1)`

Answer

C