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DISPERSION AND DEVIATION WITHOUT DISPERSION THROUGH SEVERAL PRISM COMBINATIONS









EQUIPMENT
        redball.gif (326 bytes)  Prism Apparatus
        redball.gif (326 bytes)  Slit Collimator
        redball.gif (326 bytes)  6 Volt Projector




NARRATIVE
            Dispersion can be eliminated from a prism while retaining deviation by using a combination of prisms. Insert the slit collimator in the small projector. Place the single prism in the beam to show dispersion and deviation. Insert the combination of prisms to eliminate dispersion.