The ratio of de Broglie wavelengths of two particles,having mass ratio $1 : 3$ and kinetic energy ratio $2 : 1$ is

  • A
    $3 : 2$
  • B
    $\sqrt{3} : \sqrt{2}$
  • C
    $\sqrt{2} : \sqrt{3}$
  • D
    $2 : 3$

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