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Lecture Demonstrations Laboratory

The Demonstrations Manual

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Quantum Effects
Atomic Physics
Emission Spectra
Street Lamps Collection
Fluorescence
Nuclear Physics

Emission Spectra

Purpose:

To observe the different spectra of ionized gases such as He, H, Na, Hg.

Procedure:

Pass out gratings to class and have them observe the different line spectra of gases. The tubes are easily changed and the spectra are quite beautiful. The gratings can also be rotated to show some recombination of the seperated colors.

Comments:

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Equipment:

  • Spectrum Tube Power Supply
  • Diffraction Gratings
  • Spectrum Tubes