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Structure of the Atom — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceStructure of the Atom1 Mark
MCQ
Alpha-particles that come closer to nuclei in Rutherford's alpha particle scattering experiment:
  • A
    Are deflected more
  • B
    Are deflected less
  • C
    Make more collisions
  • D
    None of the above
✓

Answer

  1. Are deflected more

Explanation:

In the α-particle experiment as the alpha particles come closer to the nucleus it deflects more, because α-particle and the nucleus both are positively charged.

And positive charge repel each other and this electrostatic force is inversely squared proportional to the distance between α-particle and nucleus.

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