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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Mechanics
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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

Purpose:

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

Procedure:

Pass out gratings and have class observe bulb through a multiple slit pattern. Next, place the filters in front of the bulb and have class observe the interference through different multiple slit patterns noting the different spacings of the red and blue light.

Hints:

Some proficiency is required in handling the gratings.

Equipment:

1 10 inch single filament lamp
Cornell slit film slides
Red and Blue Filters Mounted on Wooden Stand