Which type of surface in a fringe pattern exhibits the movement of fringes towards the centre?

Which type of surface in a fringe pattern exhibits the movement of fri

1.	Which type of surface in a fringe pattern exhibits the movement of fringes towards the centre?
A.	concave surface
B.	convex surface
C.	Both A & B
D.	None of these
Answer» B. convex surface

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Which type of surface in a fringe pattern exhibits the movement of fringes towards the centre?

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