Optics 6 Question 13
15. Two coherent point sources and are separated by a small distance as shown. The fringes obtained on the screen will be
(2013 Main)
(a) points
(b) straight lines
(c) semi-circle
(d) concentric circles
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Solution:
- A fringe is a locus of points having constant path difference from the two coherent sources
and . It will be concentric circle.