What is Intensity of Ray? Where to Get Info?

  • Context: High School 
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SUMMARY

The discussion centers on the equation Iγ=(ΓN)/D², which pertains to the intensity of a ray. Participants express difficulty in finding information about this equation, with one suggesting it relates to irradiance as radiant flux per area. Another contributor connects the equation to the natural line width and mean lifetime, referencing the relationship (FWHM) * mean lifetime = ħ (Planck's constant). This indicates a connection between quantum mechanics and the intensity of rays.

PREREQUISITES
  • Understanding of irradiance and radiant flux
  • Familiarity with quantum mechanics concepts, specifically natural line width
  • Knowledge of Planck's constant and its applications
  • Basic mathematical skills for manipulating equations
NEXT STEPS
  • Research the concept of irradiance in optics
  • Study the relationship between natural line width and quantum mechanics
  • Explore the implications of Planck's constant in physics
  • Learn about the Full Width at Half Maximum (FWHM) in spectral analysis
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Students and professionals in physics, particularly those focusing on optics and quantum mechanics, as well as researchers seeking to understand the relationship between light intensity and quantum properties.

ATPenergy
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What is this equation I[tex]\gamma[/tex]=([tex]\Gamma[/tex]N)/D2

It is about Intensity of ray.
But I can't find any information about it.
What is it? And where can I get the information?
 
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Hi ATPenergy! :smile:
ATPenergy said:
What is this equation I[tex]\gamma[/tex]=([tex]\Gamma[/tex]N)/D2

It is about Intensity of ray.
But I can't find any information about it.
What is it? And where can I get the information?

I'm not sure, but it looks a bit like irradiance = radiant flux (or radiant power) per area :confused: …

see http://en.wikipedia.org/wiki/Radiant_flux"

what book did you get it from?
 
Last edited by a moderator:
Hi,
i think it is the relation between natural line width, mean life time and Planck's constant!
the correct relation which i know (FWHM)*meanlifetime=hbar.
 

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