Number of Photons and wavelength?

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    Photons Wavelength
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Discussion Overview

The discussion revolves around the relationship between the number of photons emitted by a charged particle and the wavelength of the radiation, specifically in the context of Cherenkov radiation. Participants seek a detailed mathematical explanation of how relative intensity per unit frequency relates to frequency and wavelength.

Discussion Character

  • Exploratory, Technical explanation, Mathematical reasoning

Main Points Raised

  • One participant mentions that the number of photons emitted is inversely proportional to wavelength in the context of Cherenkov radiation.
  • Another participant refers to Wikipedia, noting that the intensity per unit frequency is approximately proportional to frequency, implying that higher frequencies correspond to shorter wavelengths.
  • A participant expresses a desire for a mathematical explanation of the relationship between relative intensity per unit frequency and frequency.
  • A later reply suggests that there is a mathematical derivation of the Cherenkov frequency spectrum available in a textbook by Jackson.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus, as there are requests for further mathematical clarification and differing levels of understanding regarding the relationship between frequency and intensity.

Contextual Notes

The discussion may be limited by assumptions regarding the definitions of intensity and frequency, as well as the mathematical steps involved in deriving the relationships discussed.

vhbelvadi
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I read recently that the "number of photons emitted by a charged particle is inversely proportional to wavelength" with regard to Cerenkov radiations. (The wavelength refers to the radiation which is of comparatively shorter wavelength, towards the blue-end.)

I was looking for a more detailed explanation for this. A little (or a lot of) maths would help too!

Thank you.
 
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@jedishrfu - I did that already! Wikipedia states,

"Around the visible spectrum, the relative intensity per unit frequency is approximately proportional to the frequency. That is, higher frequencies (shorter wavelengths) are more intense in Cherenkov radiation."

I was looking for an explanation on how (mathematically) 'relative intensity per unit frequency' and frequency are related. I know they're proportional, but I'd like a mathematical explanation/reasoning for it.
 
There's a (rather mathematical) derivation of the Cherenkov frequency spectrum in Jackson.
 

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