Who proposed matter waves?
Correct answer: A. De Broglie
- A. De Broglie
- B. Einstein
- C. Stephen hawking
- D. Lewis
Explanation
Louis de Broglie, a French physicist, proposed the concept of matter waves in his 1924 PhD thesis. He suggested that all matter, not just light, exhibits wave-like properties. This revolutionary idea was based on the wave-particle duality of light, which had been established by Albert Einstein's work on the photoelectric effect.De Broglie's hypothesis was later confirmed by experiments, most notably by the Davisson-Germer experiment in 1927. This experiment demonstrated the wave-like behavior of electrons.
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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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