In a standard YDSE setup,two sources S_1 and | vedclass

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(B) The intensity distribution in a $YDSE$ experiment is given by $I = I_1 + I_2 + 2\sqrt{I_1 I_2} \cos(\Delta \phi)$.From the graph,we observe that t

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$S_1$ and $S_2$ have a constant phase difference.

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(B) The intensity distribution in a $YDSE$ experiment is given by $I = I_1 + I_2 + 2\sqrt{I_1 I_2} \cos(\Delta \phi)$.From the graph,we observe that the minimum intensity $(I_{min})$ is zero. Since $I_{min} = (\sqrt{I_1} - \sqrt{I_2})^2$,$I_{min} = 0$ implies that $I_1 = I_2$. Thus,the sources must have the same intensity.Furthermore,for a stable interference pattern to be observed on the screen,the sources $S_1$ and $S_2$ must be coherent. Coherent sources are defined as sources that maintain a constant phase difference over time. Therefore,the statement that $S_1$ and $S_2$ have a constant phase difference is a fundamental requirement for the observed interference pattern.

In a standard $YDSE$ setup,two sources $S_1$ and $S_2$ of intensities $I_1$ and $I_2$ are placed in front of a screen (figure). The pattern of intensity distribution seen in the central portion is given by the graph. In this case,which of the following statements is true?

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