Blackbody in photoelectric effect

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SUMMARY

The discussion centers on the application of blackbody radiation in the context of the photoelectric effect. Participants clarify that a blackbody does not necessarily have to be a metal, as exemplified by the sun, which is a blackbody emitter. The photoelectric effect is defined by the properties of the metal used, and the process of photoemission is more complex than the initial assumptions made by the inquirer. Understanding the distinction between blackbody radiation and the photoelectric effect is crucial for accurate comprehension of these phenomena.

PREREQUISITES
  • Understanding of blackbody radiation and its properties
  • Knowledge of the photoelectric effect and its mechanisms
  • Familiarity with electromagnetic waves and their interaction with matter
  • Basic principles of quantum mechanics related to energy levels in atoms
NEXT STEPS
  • Study the principles of blackbody radiation and Planck's law
  • Explore the detailed mechanics of the photoelectric effect
  • Research the relationship between energy levels in atoms and photoemission
  • Investigate the properties of metals as photocathodes in photoelectric experiments
USEFUL FOR

Students and researchers in physics, particularly those focusing on quantum mechanics, photonics, and materials science, will benefit from this discussion.

hasanhabibul
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any electron will be emitted if i use a black body as a metal target in photoelectric effect experimant and why??
 
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hasanhabibul said:
any electron will be emitted if i use a black body as a metal target in photoelectric effect experimant and why??

Why are you mixing these things? A blackbody, emits EM spectrum from heat. Why is this being mixed with something that emits electrons via absorption of light?

Zz.
 
why radiation vs wavelength curve of plack radition formula become lower after reaching a certain amount of energy?is it related to threshold frequency or anything else please explain me.
 
hasanhabibul said:
why radiation vs wavelength curve of plack radition formula become lower after reaching a certain amount of energy?is it related to threshold frequency or anything else please explain me.

Not until you answer my question.

Zz.
 
when emw incident on a metal(including black body)..the atoms of the metal gains the energy of hmeu..and become excited and try to go the upper level continously.it seems as if there creates a random movemnet of electron inside the atom so i think but not sure a lot of probability to get off a electron from the metal..and creates current like photoelectric effect.so i asked u if i used a black body as a metal target the same thing will happen or not??and u said not..but i am still unsure.please explain me.
 
hasanhabibul said:
when emw incident on a metal(including black body)..the atoms of the metal gains the energy of hmeu..and become excited and try to go the upper level continously.it seems as if there creates a random movemnet of electron inside the atom so i think but not sure a lot of probability to get off a electron from the metal..and creates current like photoelectric effect.so i asked u if i used a black body as a metal target the same thing will happen or not??and u said not..but i am still unsure.please explain me.

A "blackbody" need not be a metal! The sun is often considered as a 'blackbody' emitter. Do you think it is a "metal"?

If you wish to know about the photoelectric effect, ask about the photoelectric effect. If it is a metal, then it will obey what metals do. What you use that metal for (either as a photocathode or as the material of your "blackbody") is irrelevant since the property of that material is already defined.

BTW, you might want to read the FAQ first regarding what happens with the property of "individual atoms" when they form a solid. The properties such as photoelectric effect, has nothing to do with the property of individual atoms. The process of photoemission is more complicated than what you are describing here, and I have no idea if I should go into it since I have no clue on your background.

Zz.
 
dont be afraid please explain me the whole thing
 
It's not a matter of being afraid. It's a matter of wasting my time.

Zz.
 

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