A charged particle moves along circular path in a uniform magnetic field in a cyclotron. The kinetic energy of the charged particle increases to $4$ times its initial value. What will be the ratio of new radius to the original radius of circular path of the charged particle
  • A$1: 1$
  • B$1: 2$
  • C$2: 1$
  • D$1: 4$
JEE MAIN 2022, Medium
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