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3 marksMagnetic Forces

CAPE Physics Unit 2 · 2006 · Paper 1 · Question 7(b)(ii)

Charged particles in uniform magnetic fields.

An alpha particle and a beta particle move at the same speed perpendicular to the same magnetic field. If the radius of the alpha particle's path is 0.40 m, calculate the radius of the beta particle's path.

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Other parts of this question

  1. 7(a)Complete the nuclear equations for the alpha decay of Thorium-232 to Radium-228 and the beta decay of Radium-228 to Actinium.[3 marks]
  2. 7(b)(i)Derive an expression for the radius R of the circular path of a particle with mass m and charge q travelling at speed v perpendicular to a uniform magnetic…[3 marks]
  3. 7(c)Explain why the deflection diagram shown in Figure 9 is unrealistic.[1 mark]

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