The electron was discovered by:
Correct answer: B. J. J. Thomson
- A. Milikan
- B. J. J. Thomson
- C. Chadwick
- D. Bohr
Explanation
The electron was discovered by J.J. Thomson in 1897 through his cathode ray tube experiments. Thomson's work provided crucial evidence for the existence of subatomic particles and contributed significantly to the development of the atomic model.
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About Dawn of Modern Physics
Classical physics cannot explain blackbody radiation and related observations, leading to Planck’s quantum theory, in which energy is emitted or absorbed in discrete packets. Photons provide the particle model of light, with energy and momentum linked to frequency and wavelength, including the photoelectric effect and its threshold frequency.
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