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As described in the problem introduction, a criterion for a dark band to appear at point P is that the phase difference between light arriving at point P from the top of the slit and light arriving at point P from the bottom of the slit equal 2π. What length of path difference d will give a phase difference of 2π?

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3 votes

Answer:

bsinΘ

Step-by-step explanation:

See attached picture.

As described in the problem introduction, a criterion for a dark band to appear at-example-1
User Hengky
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