Suppose that the width of one of the slits were decreased (without changing the distance between the centers of the slits). How, if at all, would this modification affect how much the water surface would move at the points you marked above? Explain your reasoning. (Hint: How can you use your observations from part A of section 1 in this case?)
Thus far we have observed the behavior of water waves when they pass through narrow slits.
Below we investigate the behavior of light passing through two very narrow slits.
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