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The color of the light given out by a sodium vapor discharge lamp is

  • The color of the light given out by a sodium vapor discharge lamp is Yellow.
  • Sodium vapor lamps are a type of electric discharge lamp that produces light by passing an electric current through ionized sodium vapor.
  • The light emitted by the sodium vapor has a characteristic yellow-orange color with a wavelength of about 589 nanometers.
  • This is why sodium vapor lamps are often used in outdoor lighting, such as streetlights and parking lot lights because their yellow light does not cause as much light pollution as white light sources.
  • Sodium vapor lamps are also used in some indoor lighting applications, such as in high-bay industrial lighting, where their high efficiency and long life make them a cost-effective option.