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Lecture on Two Source Interference. Two source interference. constructive interference -------. destructive interference -------. Two source interference. – S 1 P. S 2 P. Path difference =. = 1 wavelength. = . P. constructive interference -------

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## Lecture on Two Source Interference

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**Lecture on Two Source Interference**www.assignmentpoint.com**Two source interference**constructive interference ------- destructive interference ------- www.assignmentpoint.com**Two source interference**– S1P S2P Path difference = = 1 wavelength = P constructive interference ------- destructive interference ------- S2 S1 www.assignmentpoint.com**Two source interference**n Pathdifference for constructive interference = (where n is an integer) 0 2 3 constructive interference ------- destructive interference ------- www.assignmentpoint.com**Two source interference**(n + ½) Pathdifference for destructive interference = (where n is an integer) ½ 1½ 2½ constructive interference ------- destructive interference ------- www.assignmentpoint.com**Two source interference**The path difference is • n for constructive interference • (n +½) for destructive interference www.assignmentpoint.com

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