Minimum energy required by the electron to leave the metal surface is called as _of the metal surface:
Correct answer: B. Work function
- A. Threshold frequency
- B. Work function
- C. Cut-off frequency
- D. Threshold energy
Explanation
The minimum amount of energy required to escape the electron from the metal surface is called work function "Φ".
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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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