English, asked by suriyachitra2000, 4 months ago

what does "coherence" mean?

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Answered by XxItzqueenxX00

Answer:

Coherence, a fixed relationship between the phase of waves in a beam of radiation of a single frequency. ... Two beams of light are coherent when the phase difference between their waves is constant; they are noncoherent if there is a random or changing phase relationship.

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