Physics Demo Manual

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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Geometrical Optics
Diffraction
Interference: video - Interference and Diffraction; Multiple Slit Interference; Multiple Slit Interference II; Diffraction using CD; video - Newton's Rings; Laser Interference; video - Thin Film Interference; Michelson Interferometer
Color
Polarization
The Eye

Multiple Slit Interference II

Purpose:

To demonstrate the wavelength dependence of the maxima spacing in an interference pattern.

Procedure:

Turn on the dual laser shining on a 1000 lines/mm diffraction grating. After adjusting a laser so that the central maxima are aligned, observe that the secondary maxima of the red laser are much wider than that of the green.

Equipment:

Diffraction Gratings
Dual Laser