INTERFERENCE TRANSPARENCY MODEL

Demo Number 230
Location Shelf 41
Description This set of transparent plastic plates with concentric circles demonstrates how light interference is created. Concentric circles represent wavefronts.
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Tips
  • Move the centers of the two plates relative to one another and dramatic interference patterns appear.
  • Two sets of straight lines (wavefronts) with different spacing can be used to demonstrate phase and group velocity concepts.
  • For use with an overhead projector.

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