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Proton, Deuteron and alpha particle of the same kinetic energy are moving in circular trajectories in a constant magnetic field. The radii of proton, deuteron and alpha particle are respectively r_p, r_d and r_ . Which one of the following relations is correct?

Options

  1. Ar_ =r_p=r_d
  2. Br_ =r_p < r_d
  3. Cr_ >r_d>r_p
  4. Dr_ =r_d>r_p

Correct answer

B. r_ =r_p < r_d

Step-by-step solution

r= 2 m K B q r m q r_ =r_p < r_d

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