Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 30 - Think and Explain - Page 579-581: 47


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The radiation from widely-spaced tungsten atoms would be emitted at discrete wavelengths, but the atoms of solid tungsten in an incandescent light bulb filament interact with each other. The formerly well-defined energy levels are smeared by their interactions, and radiation from these atoms is smudged into a broad distribution, producing a smooth spectrum.
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