Number of photo electrons emitted from metal depends upon:
Correct answer: A. Intensity of incident light
- A. Intensity of incident light
- B. Wavelength of incident light
- C. Energy of incident light
- D. Frequency of incident light
Explanation
In photoelectric effect electrons are emitted instantaneously; the intensity of light detemines only their numbers.
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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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