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Radiasi Elektromagnetik pptx wordpress com — Get a Free Blog Here

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									Radiasi Elektromagnetik
Spektrum Elektromagnetik
 Radiasi Benda Hitam
(Blackbody Radiation)
            What's a "blackbody"?
            • A blackbody is an object
              that absorbs all the light
              that hits it.

            • Heat a blackbody: it emits a
              continuous spectrum of
              electromagnetic radiation.

            • The total amount of
              radiation and the
              wavelength of radiation
              depend only on
              temperature.
Menurut Planck, benda hitam akan memancarkan energi dengan
frekuensi antara v dan v+dv, dengan intensitas spesifik Bv:




Dalam term panjang gelombang, benda hitam akan memancarkan
energi dengan frekuensi antara λ dan λ +d λ, dengan intensitas spesifik
Bv:
 Radiasi Benda Hitam
(Blackbody Radiation)
Hukum Stefan-Boltzmann




Hukum Wien
Pancaran Bintang

								
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