The velocity of most energetic photoelectrons emitted from a metal surface depends upon:
Correct answer: A. frequency of the incident light
- A. frequency of the incident light
- B. intensity of the incident light
- C. time for which the light falls on the metal
- D. All of above
Explanation
In photoelectric effect electrons are emitted with different energies. The maximum energy of photoelectrons depends on the nature of metal surface and the frequency of incident light.
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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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