MadSci Network: Physics

Subject: ould a pool of electrons reflect ALL frequancies of radiation?

Date: Thu Jun 29 10:42:55 2006
Posted by Roman R.
Grade level: 10-12 School: Staten Island Technical Highschool
City: Staten Island State/Province: New York Country: USA
Area of science: Physics
ID: 1151602975.Ph

I looked through the archived answers, and couldn't find anything even close to
answering my question. I hope i'm not blind or anything ;)

Let's say, that somehow, electrons were to be densely packed on the 
surface of
an insulator such as glass, or anything else (its just important that 
surface doesn't aborb the electrons). 
Now, if photons were shot at this pool of electrons, will the photons 
off of the electrons as they do during compton scattering? Also, does 
frequancy of those photons affect the ability of the electrons to 
reflect them
as would the frequancy of the photons affect the ability of a 
conducting surface
reflect them? 
I ask this because I have read that in order for a surface to reflect 
it must be a few times bigger than the wavelength. For one, i don't 
why this must be. Also, the photons still reflect off of the electrons 
nuclei, so how would those electrons or nuclei 'know' if the wavelength 
smaller than the length of all the reflecting things?


Re: ould a pool of electrons reflect ALL frequancies of radiation?

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