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KCET2012PhysicsMagnetic Effects of Current

An -particle and a proton moving with the same kinetic energy enter a region of uniform magnetic field at right angles to the field. The ratio of the radii of the paths of -particle to that of the proton is

Options

  1. A1: 8
  2. B1: 1
  3. C1: 2
  4. D1: 4

Correct answer

B. 1: 1

Step-by-step solution

Radius of circular path of charged particle in uniform magnetic field aligned r &= P qB = 2 mK qB r : r ₂ &= m ₁ q ₁ : m ₂ q ₂ &= 4 2 : 1 1 =1: 1 aligned

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