Physics 173 Internet Question of the Week

The Questions

October 27 - October 31, 1997

Question #1:

If you've been doing the questions of the week, then you probably know by now that The Exploratorium Museum in San Francisco has some pretty cool science stuff. Take another virtual tour to the Exploratorium. (Use a search engine to find it if you do not know the URL.) From the Exploratorium home page, click on the "Search" button in order to conduct a topical search of Exploratorium exhibits which focus on the topic of thin film interference. Type "thin films" and click "Search" to see a listing of exhibits concerning thin film interference phenomena. Identify an exhibit by name (and by URL) which you find "phun"; discuss the exhibit and the principles which explain its operation.














Question #2:

Anna Litical is conducting an experiment to determine the wavelength of light. She shines monochromatic light onto a pair of slits separated by 0.133 mm and observes an interference pattern on a whiteboard positioned 6.2 meters from the slits. If shee measures that the central and seventh bright lines are spaced 21 cm apart, then what is the wavelength of her light source in units of nanometers. PSYW

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