Purpose:Demonstrate the Land effect using red and white light.
Description:This experiment must be done in the dark. Two slides of the same object which were taken in white and red light, are lit by white and red light respectively and superimposed on a screen using slide projectors with zoom lenses and horizontal and vertical adjusters. The intensity of the red light is then adjusted so that the full spectrum of colors is seen in the picture. The two component images are shown below.