Visualizing ConceptsThe familiar phenomenon of a rainbow
Chapter 3, Problem 5E(choose chapter or problem)
The familiar phenomenon of a rainbow results from the diffraction of sunlight through raindrops. (a) Does the wavelength of light increase or decrease as we proceed outward from the innermost band of the rainbow? (b) Does the frequency of light increase or decrease as we proceed outward? (c) Suppose that instead of sunlight, the visible light from a hydrogen discharge tube (Figure 6.10) was used as the light source. What do you think the resulting “hydrogen discharge rainbow” would look like? [Section 6.3]
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