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What color would a green cloth appear in yellow light

  1. Apr 19, 2009 #1
    Basically I wanted to teach myself about light and I have a question that i am not to sure about
    basically I know about the spectrum of light but I also know that two primary colours make a secondary color.

    yellow is either is own wavelength or its a mixture of green and red, so here's my questions

    What color would a green cloth appear in yellow light.

    I know its either green or black but i am not sure which
     
  2. jcsd
  3. Apr 19, 2009 #2
    Re: Light

    What do you mean "a green cloth"? You mean when illuminated with white light the cloth appears green?
     
  4. Apr 19, 2009 #3
    Re: Light

    A green cloth reflects both blue and yellow light, so if you shine "yellow light" on it (ie light where all other wavelengths have been removed, including blue obviously) the cloth would only reflect yellow light and thus appear yellow.
     
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