< Page:Light waves and their uses.djvu
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13
Wave Motion and Interference

A beautiful instance of such interference occurs in a soap film. Ordinarily, however, such films have the form FIG. 13of a soap bubble; and, while the disturbing causes usually in operation enhance wonderfully the beauty of the appearance, they do not permit the accurate investigation of the FIG. 14phenomenon. These disturbing elements are very much diminished in the arrangement which follows:

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