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- Purpose
- To demonstrate visually the interference pattern formed when a coherent (laser) light beam passes through two slits.
- Location
- room 146, shelf P3
- Description
- A quick demonstration of double-slit interference can be done with the green diode laser and the multiple-slit plate. The plate will need to be elevated with a book (left photo) to get proper alignment with the laser. This should result in a clearly visible two-slit interference pattern on the pull-down screen (right photo). There are single slits on the plate as well, but better diffraction patterns can be obtained with the Pasco equipment in the �Interference and Diffraction� demo.
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