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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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