> Q. Intensity at any point due to interference of two waves will be maximum, when path difference at that point is : – LIVE ANSWER TODAY

Q. Intensity at any point due to interference of two waves will be maximum, when path difference at that point is :

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Intensity at any point due to interference of two waves will be maximum, when path difference at that point is :

Solution:

We know that $ Ipropto {{A}^{2}} $ $ A=sqrt{a_{1}^{2}+a_{2}^{2}+2{{a}_{1}}{{a}_{2}}cos theta } $ $ cos theta =2pi n $ $ frac{2pi }{lambda }times $ path difference = phase angle $ therefore $ path difference $ =frac{2pi ntimes lambda }{2pi }=nlambda $

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