Question:
What are the coherent sources of light? Can two independent sodium lamps act like coherent sources? Explain.
What are the coherent sources of light? Can two independent sodium lamps act like coherent sources? Explain.
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- Coherent sources emit waves with:
- A constant phase difference.
- The same frequency.
- Two independent sodium lamps cannot be coherent sources because their emissions are random and do not maintain a constant phase relationship.
- Coherent light can be obtained from a single source, such as using a beam splitter to create two coherent beams.
Updated On: Feb 16, 2025
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Solution and Explanation
Coherent Sources of Light
Coherent sources of light are sources that emit waves with:
A constant phase difference,
The same frequency.
Explanation: Two independent sodium lamps cannot act as coherent sources because their emissions are random and do not maintain a constant phase difference. Only light derived from a single source (e.g., using a beam splitter) can produce coherent sources.
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