Al Tobias (wat4y) - Office: Gibson S123 & Physics 218, (434) 924-0538
Demonstrations are cataloged according to PIRA Bibliography
PLEASE REQUEST DEMOS WELL IN ADVANCE
Due to Physics Building renovations, the lead time to set up demo requests has increased due to the need to transport equipment across campus. Please be kind and let me know well ahead of time what you need.
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Diffraction using CD
Purpose:To demonstrate diffraction using Compact Disk.
Procedure:A compact disc is placed on the ELMO with top lights on. The adjacent tracks on a CD's spiral groove are close enough to act as a diffraction grating (1.6 ∓0.1 μm). Rainbow pattern projected on the screen can be adjusted by moving the CD left and right.