•Relate continuous spectra,
emission line spectra, &
• absorption line
spectra
1.Luminous
solid (dense gas) emits light of all wavelengths ® continuous spectrum of radiation
2.Low
density hot gas emits spectrum of bright emission lines ® composition of gas
3.Low density
cool gas absorbs wavelengths from continuous spectrum ® dark absorption lines on continuous spectrum (wavelengths same as emission lines from hot gas)
4.