PURPOSE: Increase the dispersion in a white light spectrum by adding a second prism.
DESCRIPTION: Use the prismatic spectrum setup of demonstration N1-01: PRISMATIC SPECTRUM OF WHITE LIGHT - POINT SOURCE. A second identical prism is inserted into the beam in the same sense as the first prism, so that the dispersion is increased .
REFERENCES: (PIRA unknown.)
EQUIPMENT: Bright point source with condenser lens and iris, 10cm focal length cylindrical convex lens, slit, 20cm spherical convex lens, and flint glass prism, with second identical prism.
SETUP TIME: 5 min.
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