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  4. If two incoherent sources each of intensity I0 produce wave which overlaps at some common point, then resultant intensity obtained is

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Q. If two incoherent sources each of intensity $I_{0}$ produce wave which overlaps at some common point, then resultant intensity obtained is

Wave Optics

Solution:

When the sources are incoherent there is no interference and resultant intensity is $I_{1}+I_{2}$. For sources of same intensity $I_{0}$, resultant intensity will be $2 I_{0}$.