About photoelectric effect and work function

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Discussion Overview

The discussion revolves around the photoelectric effect and the concept of work function in relation to photon absorption by metals. Participants explore whether a photon with energy less than the work function can be absorbed and the implications of such absorption.

Discussion Character

  • Exploratory, Conceptual clarification

Main Points Raised

  • One participant asserts that if the energy of the photon is less than the work function, no photoelectric effect is observed.
  • Another participant proposes that a photon with energy less than the work function may still be absorbed, suggesting that it could contribute to heating the metal instead of causing electron emission.
  • A similar viewpoint is reiterated by another participant, emphasizing that absorption could lead to an increase in the metal's temperature.
  • A participant expresses personal concern about understanding the problem, indicating a desire for further clarification.

Areas of Agreement / Disagreement

Participants do not reach a consensus on whether a photon with energy less than the work function can be absorbed, as there are differing interpretations of the absorption process.

Contextual Notes

The discussion does not resolve the conditions under which absorption occurs or the specific mechanisms involved, leaving some assumptions and definitions open to interpretation.

VHAHAHA
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If the energy of the photon is less than the work function of the metal, no photoelectric is observed.
I would like to ask if the photon would be absorbed even if its energy is less than the work function? or the photon would not be absorbed?
 
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The photon has a chance of being absorbed, yes. If it is absorbed and its energy is less than the work function then it simply adds its energy to the metal, heating it up.
 
Drakkith said:
The photon has a chance of being absorbed, yes. If it is absorbed and its energy is less than the work function then it simply adds its energy to the metal, heating it up.

thank you for ur help, this problem really bothers me a lot =D
 
VHAHAHA said:
thank you for ur help, this problem really bothers me a lot =D

What about it bothers you?
 

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