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Thermal Physics

Cool goIITian

Joined:	23 Sep 2008
Post:	74

5 Sep 2009 21:53:27 IST

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canb sum boody plz explainthe total thing of black body radiations???

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canb sum boody plz explainthe total thing of black body radiations???

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piyush jain

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Joined: 1 Jun 2009

Posts: 2413

5 Sep 2009 23:29:03 IST

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hiiiiiiiiiiiiiiii

a black body is an idealized object that absorbs all electromagnetic radiation that falls on it.

No electromagnetic radiation passes through it and none is reflected. Because no light

(visible electromagnetic radiation) is reflected or transmitted, the object appears black when it is cold

. However, a black body emits a temperature-dependent spectrum of light. This thermal radiation from

a black body is termed black-body radiation..

in fir...As the temperature decreases, the peak of the black-body radiation curve moves

to lower intensities and longer wavelengths. .. !!!!!

Rohit Agarwal

Cool goIITian

Joined: 23 Sep 2008

Posts: 74

6 Sep 2009 16:02:43 IST

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thanks a lot..but can u elaborate on dis linethe object appears black when it is cold. However, a black body emits a temperature-dependent spectrum of ligh

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