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Unformatted text preview: ii. Examination of the graphs shows that radiation peaks in certain wavelengths and decreases in amount more slowly on the infrared side of the peak, than on the ultra violet end. From this graph color is determined What causes color (spectra)? 1. There is a set of physical laws that govern what happens to a material when it is heated. i. As a material is heated the peak of the radiation given off shifts to the blue end on the ultra violet end of the spectrum. ii. This shift is known as Wiens Displacement Law. iii. As a material gets hotter, the amount of radiation given off grows quickly. iv. The energy follows the Stefan-Boltzman model. v. The Stefan-Boltzman model the energy given off from a constant surface area of gas; the actual amount of energy a star gives off depends on how hot a star is, and how large the surface area is. Example 1 energy is temperature is 300k Example 2 Energy if temperature is 600k....
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This note was uploaded on 12/15/2011 for the course BIO BSC1010 taught by Professor Gwenhauner during the Fall '10 term at Broward College.
- Fall '10