PURPOSE: Very simple white light diffraction spectrum.
DESCRIPTION: A slit is placed on the platform of the overhead projector, and a STAR grating is positioned on the upper exit lens of the projector. Filters or other transluscent slides can be placed on the slit to see their spectra on a screen.
The picture above shows the spectra of red, green, and blue filters with a full white light spectrum between each filter.
SUGGESTIONS:
EQUIPMENT: STAR diffraction grating, overhead projector slit, and color filters.
SETUP TIME: 5 min.
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