Fine Resolution Of Spectrum Using Two Prisms
Increase the dispersion in a white light spectrum by adding a second prism.
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.
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 .