6D30.20 Thin Films: Soap Film Interference
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Photo of the Demonstration at the University of Texas at Austin.
Instructions / Notes:
Faculty: The thin film reflection starts out clear, then develops color bands with a couple of minutes.
White light from a slide projector is reflected off the soap bulb onto a screen.
Please, position the reflected image so that a majority of the students can view it.
Demo Staff: The slide projector needs a to have a blank slide installed in the vertical position.
Please switch off the bulb and leave the fan running for a bit when the demo is not in use.
Last Updated 10/02 - University of Texas at Austin Physics Dept.
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