Light cast on a surface

  1. adjacent

    adjacent 1,533
    Gold Member

    Why does a light cast on a surface look dimmer when a much intense light is cast upon it?
     
  2. jcsd
  3. Drakkith

    Staff: Mentor

    Can you be a little more specific? Are you talking about the difference in intensity between a light source and the reflected light from a surface, or is there more than 1 light source?
     
  4. adjacent

    adjacent 1,533
    Gold Member

    I shined a light on a wall,for example.It looks OK.Then I shined another light on that wall exactly on that place.Now,the previous light looks more dim.Why?
     
  5. Drakkith

    Staff: Mentor

    That's the way your brain works. In some part, it bases the level of contrast off of the darkest and brightest areas in view.
     
    1 person likes this.
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