This is a demonstration of the diffraction pattern produced by a single slit, with slit widths of 0.02 mm, 0.04 mm, 0.08 mm, 0.16 mm producing more and more closely spaced fringes. Also shown are patterns for circular apertures of 0.2 mm and 0.4 mm.

This demonstration was created at Utah State University by Professor Boyd F. Edwards, assisted by James Coburn (demonstration specialist), David Evans (videography), and Rebecca Whitney (closed captions), with support from Jan Sojka, Physics Department Head, and Robert Wagner, Executive Vice Provost and Dean of Academic and Instructional Services.

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