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Course: Exploratorium > Unit 2
Lesson 3: Soap Film Interference ModelBuild it: What you'll need to model Soap Film Interference
Light reflecting off the surface of soapy water produces colors—why? What affects which colors you see? This model shows what happens when light of different wavelengths encounters soap film of different thicknesses. This tutorial is a companion to Soap Film on a Can (see the main page of the Exploratorium's Color and Light section).