Two particles $x$ and $y$ have equal charges and possessing equal kinetic energy enter in a uniform magnetic field and describe circular path of radius of curvature $r_1$ and $r_2$ respectively. The ratio of their masses is

  • A

    $\left( {\frac{{{r_1}}}{{{r_2}}}} \right)$

  • B

    ${\left( {\frac{{{r_1}}}{{{r_2}}}} \right)^{1/2}}$

  • C

    ${\left( {\frac{{{r_1}}}{{{r_2}}}} \right)^2}$

  • D

    ${\left( {\frac{{{r_2}}}{{{r_1}}}} \right)}$

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