2007-02-03 04:21:42 · 3 answers · asked by manikant k 1 in Science & Mathematics ➔ Physics
quite general question
In physics, Planck's law of black body radiation predicts the spectral radiance of electromagnetic radiation at all wavelengths from a black body at temperature T.
but this is only theory because there is not a material that is a perfect blackbody, every element give a diffente curve, and there are imperfections, microfractures on the surface and so on.
Moreover some of the material can be vaporized and the cloud just over the blackbody can give atomic absorption lines in the spectra.
2007-02-03 04:31:20 · answer #1 · answered by scientific_boy3434 5 · 0⤊ 0⤋
The area under curve =( integration of R*dlambda )represents the total intensityof radiation at particular temperature .Generally X- axis represents wavelenth of radiation & Y- axis represents intensity of radiation .From Stefan's law it is clear that intensity of radiation varies directly to 4th power of absolute temperature of body
So area under curve increases with rise in temperature .
It simillar to reverse of " V " shaped
2007-02-03 13:55:05 · answer #2 · answered by happy 2 · 0⤊ 0⤋
A bangin' shape! Lol
2007-02-03 12:24:04 · answer #3 · answered by Cricket 6 · 0⤊ 2⤋