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Structure of the Atom — Science STD 9 — Question

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

Answer

Correct option: A.
Are deflected more
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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