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Can two laser sources be coherent sources?

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Answer by Divya Garg

A laser light is a coherent source. Two different laser light sources will be two different sources of light and they can produce interference pattern on a screen because each source emits coherently. When the phase difference between two independent sources stays constant due to coherence, interference can occur.

Answer by Shreya

Yes, two independent laser light sources do produce interference pattern on a screen. ... Since each source emits coherently, the phase difference between the two independent sources stays constant and interference can occur