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Define coherent sources. Can two independent sodium lamps be coherent?
Define coherent sources. Can two independent sodium lamps be coherent?
Updated On: Jan 13, 2026
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Solution and Explanation
Coherent Sources
Definition of Coherent Sources
Sources are considered coherent when they emit light waves possessing identical frequency, wavelength, and a stable phase difference.
Explanation
Two separate sodium lamps do not function as coherent sources due to their emissions lacking phase-locking and exhibiting random phase fluctuations over time.
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