Two independent monochromatic light sources p | vedclass

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(A) Two light sources are said to be coherent if they emit light waves of the same frequency and maintain a constant phase difference over time.Since

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Both waves are not coherent.

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(A) Two light sources are said to be coherent if they emit light waves of the same frequency and maintain a constant phase difference over time.Since the two sources are independent,they cannot maintain a constant phase difference.Given $y_1 = 2 \sin \omega t$ and $y_2 = 3 \cos \omega t = 3 \sin(\omega t + \pi/2)$,the phase difference is $\pi/2$.However,because the sources are independent,this phase difference will fluctuate randomly over time.Therefore,the two waves are not coherent.

Two independent monochromatic light sources produce waves given by $y_1 = 2 \sin \omega t$ and $y_2 = 3 \cos \omega t$. Which of the following statements is true?

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