Question

1. Two light sources are coherent when a) their amplitudes are equal b) their frequencies are equal c) their wavelengths are equal d) their frequencies are equal and their phase difference is constant natic linht heams of intensities and I are​

Answer 1

Answer:

Thus, two sources of light are said to be coherent, when they give light waves of same wavelength and constant phase difference.

Answer 2

Explanation:

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