About photoelectric effect and work function

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SUMMARY

The discussion centers on the photoelectric effect and the concept of work function in metals. It is established that if the energy of a photon is less than the work function of a metal, no photoelectric emission occurs. However, the photon can still be absorbed, contributing its energy to the metal, which results in an increase in temperature rather than the ejection of electrons. This clarification addresses common misconceptions regarding photon absorption and energy transfer in the context of the photoelectric effect.

PREREQUISITES
  • Understanding of the photoelectric effect
  • Knowledge of work function in metals
  • Familiarity with photon energy concepts
  • Basic principles of thermodynamics related to energy transfer
NEXT STEPS
  • Research the mathematical relationship between photon energy and work function
  • Explore the implications of photon absorption on thermal energy in metals
  • Investigate experimental setups for observing the photoelectric effect
  • Learn about different materials and their respective work functions
USEFUL FOR

Physics students, educators, and researchers interested in quantum mechanics, particularly those studying the photoelectric effect and its applications in material science.

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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