Photoelectron emission depends upon the:
Correct answer: C. Frequency of incident light
- A. Intensity of incident light
- B. Color of the body
- C. Frequency of incident light
- D. Shape of the body
Explanation
The frequency of light is directly related to the energy of photons, which determines if photoelectrons will be emitted.
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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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