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Home » Lecture Demonstration Manual » 5. Light and Optics » E. Spectra

Table of Contents

  • 1. Mechanics
  • 2. Harmonic Motion, Waves and Sound
  • 3. Matter and Thermodynamics
  • 4. Electricity and Magnetism
  • 5. Light and Optics
    • A. Geometrical Optics
    • B. Interference and Diffraction
    • C. Optical Instruments
    • D. Polarization
    • E. Spectra
      • 10. Absorption of Sodium Light
      • 20. Arc Tubes
      • 30. Dispersion
      • 40. Gratings
      • 50. Projected Mercury and Continuous Spectra
    • F. Speed of Light
  • 6. Modern Physics
  • 7. Astronomy
  • 8. Software and Multimedia
  • 9. Index and code conversion from older manual
  • External Resources

10. Absorption of Sodium Light

A sodium lamp is arranged to shine on a rear projection screen. An ordinary flame, say of a match or Bunsen burner introduced between the lamp and the screen will not cast a shadow, but if a wire or stick dipped in salt solution is placed in the flame, a dark shadow of the flame appears.

‹ E. Spectra up 20. Arc Tubes ›
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