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Physics (AS & A Level) · May / June 2016 · Paper 11 · Question 40

9702Atoms, nuclei and radiation

Which statement about the alpha-particle scattering experiment provides evidence for the existence of the nucleus?

  1. AA tiny proportion of the alpha-particles are deflected through large angles.
  2. BSlower alpha-particles are deflected through larger angles.
  3. CThe kinetic energies of the deflected alpha-particles are unchanged.
  4. DThe number of alpha-particles deflected depends on the thickness of the foil.

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Correct answer: A. A tiny proportion of the alpha-particles are deflected through large angles.

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