In the photoelectric effect, the maximum kinetic energy of the emitted photoelectrons depends on the
Correct answer: C. frequency of the incident light.
- A. saturation region.
- B. intensity of the incident light.
- C. frequency of the incident light.
- D. surface temperature of the metal surface.
Explanation
In the photoelectric effect, the maximum kinetic energy of the emitted photoelectrons depends on the frequency of the incident light. This is because the energy of a photon is directly proportional to its frequency. Higher frequency light photons have higher energy, which can impart more kinetic energy to the emitted photoelectrons. The other options are incorrect as they do not play a direct role in determining the maximum kinetic energy of the photoelectrons in this phenomenon.
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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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