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Q52
(CISF/2017)
Science & Technology › Basic Science (Physics, Chemistry, Biology)
Electron was discovered by
Result
Your answer:
—
·
Correct:
B
Explanation
The electron was discovered by Joseph John Thomson (J.J. Thomson) in 1897. Through his experiments with cathode ray tubes, he demonstrated that cathode rays were composed of previously unknown negatively charged particles, which were much smaller than atoms and possessed a very large charge-to-mass ratio. This discovery was fundamental to modern physics as it proved that atoms were not indivisible units of matter.
- Michael Faraday made significant contributions to electromagnetism and electrochemistry but did not discover the electron.
- Henry Cavendish is best known for the discovery of hydrogen and measuring the Earth's density.
- Ernest Rutherford is credited with discovering the atomic nucleus and the proton through his famous gold foil experiment.
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