In a photoelectric effect experiment at a frequency above threshold frequency, the number of electrons ejected is proportional to:
Correct answer: A. The frequency of the incident light
- A. The frequency of the incident light
- B. Their potential energy
- C. The number of photons that hit the sample
- D. Their kinetic energy
Explanation
No of electrons ejected ∝ intensity of light (No of photons)
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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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