WAVES AND OSCILLATIONS - WAVE MOTION - INTERFERENCE AND DIFFRACTION NC State University Faculty Access

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Moire Pattern and Transparencies
# 3B50.40


Description: Pairs of identical transparencies have circular wave patterns. Place transparencies on the overhead projector. Vary their relative positions to produce different interference patterns.

Setup Time: none

Quant. in Demo Room: 1

Demo References
The Video Encyclopedia of Physics Demonstrations Disc 09-23 Two transparencies of equally spaced circles on the overhead.
Meiners 35-2.1 Moire patterns from two sheets of semicircular ruled transparencies form a double slit representation.

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