The photoelectric effect was explained by:
Correct answer: A. Einstein
- A. Einstein
- B. Planck
- C. Hertz
- D. Lenar
Explanation
The photoelectric effect was explained by Albert Einstein. In 1905, Einstein published a seminal paper in which he proposed that light consists of discrete packets of energy called "quanta" or "photons." He used this concept to provide a theoretical explanation for the photoelectric effect.
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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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