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CHARACTERISTICS OF
BLACKBODY RADIATION* |
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| (1) | Etotal µ T 4 (Stefan-Boltzmann Law) |
| (2) | λmax µ 1/T (Wien's Law) |
| (3) | As T increases, intensity increases at all wavelengths |
| (4) | Intensity is non-zero at all wavelengths for all T > 0 |
    Planck's Law: If = (2hf 3/c2)/(ehf/kT -1), where c = 2.9979 ´ 108 m/s (speed of light), h = 6.6261 ´ 10-34 Joule×s (Planck's constant), k = 1.3807 ´ 10-23 Joule/K (Boltzmann's constant), f = frequency in Hz = c/λ[m], T = temperature in Kelvins, and If = intensity in Joules s-1 m-2 sterad-1 Hz-1 . |
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