Two ions having masses in the ratio $1 : 1$ and charges $1 : 2$ are projected into uniform magnetic field perpendicular to the field with speeds in the ratio $2 : 3$. The ratio of the radii of circular paths along which the two particles move is

  • A

    $4:3$

  • B

    $2:3$

  • C

    $3:1$

  • D

    $1:4$

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