Question

what are coherent sources ? how are they produced ?

Answer 1

Answer:

Two sources are said to be coherent if the waves have the same frequency and a constant phase difference .

Methods to produce them:

✓ Division of wavefront where wavefront is divided into two parts by reflection,refraction or diffraction .

✓ Division of amplitude in 2 parts.

Hope you understand

Answer 2

Two sources are said to be coherent if the waves have the same frequency and a constant phase difference. The coherent sources are produced in the laboratory by these two methods. The wavefront is divided into parts using a mirror, lens or prism.

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