| Description: |
A plexiglass cylinder is filled with water to which about 700 ml of
saturated sodium thiosulfate solution and a beaker of dilute hydrochloric
acid are added. After a short time, the water-sodium thiosulfated solution
begins to get cloudy. A light is directed through one end of the cylinder.
The light scattered from the beam going through the cylinder appears to
be blue, while the transmitted light to the other end of the cylinder becomes
red. The blue light is scattered more than the red light. |