Which type of fringe is formed, if a path difference of λ/2 is observed in an interference pattern?

Both bright and dark fringe overlap

Which type of fringe is formed, if a path difference of λ/2 is obser

1.	Which type of fringe is formed, if a path difference of λ/2 is observed in an interference pattern?
A.	Dark fringe
B.	Bright fringe
C.	Both bright and dark fringe overlap
D.	Unpredictable
Answer» B. Bright fringe

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Which type of fringe is formed, if a path difference of λ/2 is observed in an interference pattern?

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