26_InstSolManual_PDF_Part7

26_InstSolManual_PDF_Part7 - Interference and Diffraction...

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26.27. Set Up: is very small, so the approximate expression is accurate. is the distance from the center of the screen to the first dark fringe on either side of the central maximum. and Solve: Reflect: The central bright fringe is twice as wide as the other bright fringes. 26.28. Set Up: is very small, so the approximate expression is accurate. Solve: 26.29. Set Up: The angle that locates the first diffraction minimum on one side of the central maximum is given by The time between crests is the period T . and Solve: (a) (b) Africa-Antartica :a n d Australia-Antartica : and 26.30. Set Up: is very small, so the approximate expression is accurate. The distance between the two dark fringes on either side of the central maximum is Solve: 26.31. Set Up: is very small, so the approximate expression is accurate. The distance between the two dark fringes on either side of the central maximum is Solve: 26.32. Set Up: The dark fringes are located at angles that satisfy The largest value of is 1.00.
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