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JEE Main PAPER - 1

JEE Main · 2018

180 questions · One at a time

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101
MCQ4 marks

An electron, a proton and an alpha particle having the same kinetic energy are moving in circular orbits of radii re,rp,rαr_e, r_p, r_\alpha   respectively in a uniform magnetic field B. The relation between re,rp,rαr_e, r_p, r_\alpha   is:

  • A.re<rp<rαr_e < r_p < r_\alpha
  • B.re<rα<rpr_e < r_\alpha < r_p
  • C.re>rp=rαr_e > r_p = r_\alpha
  • D.re<rp=rαr_e < r_p = r_\alphaCorrect
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