Intensity: For light shining through a colored solution,the observed
intensity of the color is found to be dependent on both the thickness
of the absorbing layer (pathlength) and the concentration of the colored
species.
For One Color: A series of solutions of a single color demonstrates the effect of
either concentration or pathlength, depending on how it is viewed.
←Side view
←Top view
(a.k.a. BirdÕs eye view)
Visual Colorimetry