Two coherent point sources\[{{S}_{1}}\]and\[{{S}_{2}}\]are separated by a small distance 'd' as shown. The fringes obtained on the screen will be: [JEE MAIN 2013] |
A) points
B) straight lines
C) semi−circles
D) concentric circles
Correct Answer: D
Solution :
[d] |
So, on a circle, path difference will be same locus of points having same path difference will be a circle, so fringes will make concentric circles. |
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