Black Body Radiation

(Wien's law: )

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405404782 Gabriel Rigole 4F
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Joined: Sat Aug 17, 2019 12:18 am

Black Body Radiation

Postby 405404782 Gabriel Rigole 4F » Sun Oct 06, 2019 9:48 am

So what is black body radiation. We briefly talked about it in lecture, but I would like to get a better understanding of it.

Chem_Mod
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Re: Black Body Radiation

Postby Chem_Mod » Sun Oct 06, 2019 5:55 pm

Black body radiation is more of physics experiment and is unnecessary to know for this course. Of course, you may investigate what it is for your own enjoyment.

HuyHa_2H
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Re: Black Body Radiation

Postby HuyHa_2H » Sat Oct 12, 2019 4:34 pm

More specifically, it's thermal electromagnetic radiation.

faithkim1L
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Re: Black Body Radiation

Postby faithkim1L » Sat Oct 12, 2019 4:35 pm

Black body radiation is not necessary to the course. It's more of a physics experiment.

Emma Joy Schaetz 1E
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Re: Black Body Radiation

Postby Emma Joy Schaetz 1E » Sat Oct 12, 2019 8:33 pm

Why exactly is it called "Black Body" radiation?

Ruby Tang 2J
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Re: Black Body Radiation

Postby Ruby Tang 2J » Sat Oct 12, 2019 10:04 pm

Blackbody radiation is essentially thermal EM radiation. The reason why it is called "blackbody" is because an ideal blackbody (which does NOT exist in nature -- the closest thing would probably be a black hole) absorbs all radiation (and thus reflects none) and appears to be black because of this.

Pablo 1K
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Re: Black Body Radiation

Postby Pablo 1K » Sat Oct 12, 2019 10:06 pm

It is a concept that can not be made to reality since any material to exhibit the properties is impossible. If all wavelengths are absorbed something can be "invisible".

Nikita Patra 3J
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Re: Black Body Radiation

Postby Nikita Patra 3J » Sun Oct 13, 2019 1:40 pm

A black body absorbs all radiation, and its emissions depends on its temperature. The emissions are called black body radiation.

105311039
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Re: Black Body Radiation

Postby 105311039 » Sun Oct 13, 2019 1:45 pm

I think you can refer to Black Body Radiation as thermal electromagnetic radiation. However,I know it's more of a physics thing so you will not really need to know specific details.

Chantel_2I
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Re: Black Body Radiation

Postby Chantel_2I » Sun Oct 13, 2019 2:05 pm

Since a black body absorbs all wavelengths, it does not reflect any and the eye therefore has nothing to detect. For this reason, black bodies, if they existed, would be invisible.

Rosa Munoz 2E
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Re: Black Body Radiation

Postby Rosa Munoz 2E » Sun Oct 13, 2019 7:58 pm

Should we be familiar with the Stefan-Boltzmann law?

Nathan Rothschild_2D
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Re: Black Body Radiation

Postby Nathan Rothschild_2D » Sun Oct 20, 2019 11:30 pm

Wait if black body radiation absorbs all radiation then why does it emit any radiation? Why would it not be like how a black hole does not emit any light?

J Medina 2I
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Re: Black Body Radiation

Postby J Medina 2I » Sun Oct 20, 2019 11:36 pm

A black body is a material that absorbs all radiation. No object is a true black body, it is more of an idea in the same way frictionless surfaces are used in physics problems.


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