Join WhatsApp ChannelDaily MCQs & Exam Updates
Physics Medium NTS Uploaded: 06 Aug 2026

Which scientist discovered the electron?

  • A Ernest Rutherford
  • B Niels Bohr
  • C James Chadwick
  • D J.J. Thomson
Correct Answer: Option D — J.J. Thomson
Explanation:
J.J. Thomson discovered the electron in 1897 through his cathode ray tube experiments. He demonstrated that cathode rays consisted of negatively charged particles much smaller than atoms, leading to the plum pudding model of atomic structure.
3 views Back to Physics
Submitted by: PaperMCQs
Related MCQs