## Examples of Black Body Radiation

(Wien's law: $T\lambda _{max}=\frac{1}{5}C_{2}$ )

David Sung 2H
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Joined: Wed Sep 21, 2016 2:56 pm

### Examples of Black Body Radiation

What is an example of black body radiation? Does it occur naturally or can it only be found in laboratory settings?

Pauline Tze 3B
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### Re: Examples of Black Body Radiation

You probably wouldn't be able to find a "perfect" black body except in a laboratory setting because it would need to absorb and emit ALL radiation. Examples of a general black body would be the sun, a furnace, lightbulb, etc.
If you check online you can find quite a few examples; this site is pretty good: ftp://umpgal.gsfc.nasa.gov/pub/daac_ozo ... mples.html

Kiana_Shibata_2G
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### Re: Examples of Black Body Radiation

What exactly is black body radiation? Was is discussed in class or is it in the textbook? And will it be on this upcoming quiz?

Nick Foucrier 3J
Posts: 20
Joined: Sat Jul 09, 2016 3:00 am

### Re: Examples of Black Body Radiation

A black body absorbs all the EM radiation (light) that contacts it. To stay in thermal equilibrium, it must also emit radiation at the same rate as it absorbs (black body radiation).

Chem_Mod
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### Re: Examples of Black Body Radiation

Some students are not attending class.

To repeat what I said several times in class: We are not covering black body radiation, we didn't cover black body radiation, and I did not assign any homework problems on black body radiation.

Why make life difficult. Come to Class!