Modern Physics > Atomic Physics > Spectra
DCS# 7B10.10
SODIUM SPECTRUM
APPARATUS
sodium lamp
105
hand-held diffraction grating
105-01
DESCRIPTION
Students view sodium lamp through diffraction gratings to see spectral lines of sodium.
NOTES
The sodium lamp takes about 5 minutes to warm up. The light will initially appear red-orange, because of some neon gas in the tube.
Set-up:
