Thu February 24, 2011 By: Annie Joseph

why in interference we hav dsintheta=mlamda for bright friges..whereas the same expression is used for dark fringes in single slit diffraction?

Expert Reply
Tue March 01, 2011
Dear student,
Hmm. good question. There is no specific relation between the two. But one important thing to remember is places with zero intenisty have a dark fringe, places with maximum intensity have a bright fringe.
Hope this helps.
Thanking you
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