Visible Light

• Visible Light


  The range of wavelengths that we perceive as different colours
• Visible Light is Made Up of a Range of Colours
• Visible Light Spectrum


  • Ranges from violets at 400 nm to reds at 700 nm
  • Allows us to see even more shades through different colour mixtures
  • When all colours are put together, it creates white light
• Colour and Transparency


  Depend on absorbed wavelengths
• Opaque objects


  • Do not transmit light
  • Absorb some wavelengths and reflect others
  • Colour depends on which wavelengths are most strongly reflected
• Opaque objects


  • Red apple
  • Banana
• White objects reflect all wavelengths of visible light equally
• Black objects absorb all wavelengths of visible light
• Transparent and translucent objects


  Transmit light, not all light is absorbed or reflected
• Transparent and translucent objects

  • Colour depends on the wavelengths of light transmitted and reflected