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Question

Is LED light coherent?


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Solution

  1. LED light, unlike laser light, is not coherent.
  2. The LED is a light source that is incoherent.
  3. Coherent refers to two waves that have the same frequency, the same waveform, and a constant phase difference.
  4. LEDs produce waves with the same frequency, these waves are not in phase with one another.

Hence, LED is not coherent.


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