Relation of path & phase difference

Q.  If the path difference of two waves with single source traveling by different paths to arrive at the same point, is λ/2, what would be the phase difference between them?
- Published on 01 Oct 15

a. β x (λ/2)
b. β / (λ/2)
c. β + (λ/2)
d. β - (λ/2)

ANSWER: β x (λ/2)

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