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Transmitted colour of a solution

  1. Jun 10, 2010 #1

    The colour of a solution is the wavelength of the light transmitted through it which is white light minus the absorbed colour.

    If a solution absorbs light of wavelength 630nm, what colour is it? 630nm is red /orange light. If you look on a colour wheel the complementary colour of this is blue but is there a formula or more precise way to work this out?

  2. jcsd
  3. Jun 10, 2010 #2
    Try reading http://www.handprint.com/HP/WCL/wcolor.html" [Broken] rather than a simple color wheel. Draw a line from the chosen white point (there are a couple to choose from!) to the frequency written along the edge, and go backwards from the white point, away from the frequency's point on the edge.

    Last edited by a moderator: May 4, 2017
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