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Solar Spectrum

Solar Spectrum. wavelength in Å. Joseph von Fraunhofer, 1814. Radiation from hot objects. Emission Spectra. Emission spectrum of Hydrogen. Emission Spectra. Emission spectrum of Hydrogen. Emission spectrum of Iron. Kirchhoff’s Three Laws of Spectroscopy:

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Solar Spectrum

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  1. Solar Spectrum wavelength in Å Joseph von Fraunhofer, 1814

  2. Radiation from hot objects

  3. Emission Spectra Emission spectrum of Hydrogen

  4. Emission Spectra Emission spectrum of Hydrogen Emission spectrum of Iron

  5. Kirchhoff’s Three Laws of Spectroscopy: • Light from a hot solid object has a continuous spectrum with no dark lines • The same light, passed through a cool gas has the same spectrum, but with certain wavelengths missing  dark lines (absorption spectrum) • Light emitted by a hot gas  bright lines superimposed on an otherwise black background  emission spectrum UV IR

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