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Văn bản từ brainfruit - English

  • Why is the tomato red?

  • First you have to know that white (sun)light consists of different wavelengths.
  • If your eye catch light of a specific wavelength you see a specific colour.
  • The colour you see depends on the wavelength.
  • Light can also consist of different wavelengths – if that is the case and your eye catch such light you see the mix of both colours.
  • If your eye catch light, which consist of every wavelength you see white.
  • “Seeing black” means your eye catch no light.
  • What happens when light hits a surface of some object, like a tomato?
  • Then every wavelength is absorbed except the wavelength which we see as red.

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