In Young’s double-slit experiment

PHYSICS · Single correct · CBSE · Physics · Wave Optics · Wave Optics

Problem

In Young’s double-slit experiment, what is the path difference corresponding to the third dark fringe (counting the first dark on either side of the central maximum as the first)? (a) 3λ3\lambda (b) 2λ2\lambda (c) 5λ2\dfrac{5\lambda}{2} (d) 3λ2\dfrac{3\lambda}{2}

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