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q5_sol - Since I don’t think I explained this aspect of...

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Note: The answer offered by the grader for problem 3a is 13 fringes. The grader got this by counting both bright and dark fringes. However, it is generally understood that the word “fringes” means bright fringes unless explicitly stated otherwise, so I would say the correct answer is 7.
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Unformatted text preview: Since I don’t think I explained this aspect of the terminology in lecture, I have asked the grader to accept both answers, 7 if you just counted the bright fringes, 13 if you counted both. I will try to phrase future questions so that this issue doesn’t come up again....
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