The scientist who was awarded the Noble Prize for explaining the photoelectric effect
Correct answer: D. Einstein
- A. Max Planck
- B. Compton
- C. Lousie
- D. Einstein
Explanation
Albert Einstein was awarded the Noble Prize in Physics in 1921 for his explanation of the photoelectric effect, which he published in 1905. The photoelectric effect refers to the emission of electrons from a material when it is exposed to light of sufficient energy.
This question appeared on the ETEA MDCAT 2010 paper, which you can sit online with every answer explained.
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About Photons and the Particle Model of Light
The particle model treats light as photons with energy E equals hf and momentum related to wavelength. Questions involve the photoelectric effect, work function, threshold frequency, stopping potential and photon energy, while distinguishing particle behaviour from the wave description of interference and diffraction.
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