26_InstSolManual_PDF_Part3 - Interference and Diffraction...

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Solve: (a) (b) and Reflect: The third dark fringe is closer to the center of the screen than the third bright fringe on one side of the cen- tral bright fringe. 26.10. Set Up: At large distances from the antennas the equation gives the angles where maximum intensity is observed and gives the angles where minimum intensity is observed. Solve: (a) (b) 26.11. Set Up: is very small for these dark lines and the approximate expression is accurate. Adjacent dark lines are separated by Solve: 26.12. Set Up: Water has In water the wavelength is is very small for these dark lines and the approximate expression is accurate. Adjacent dark lines are separated by Solve: is smaller in water and the dark lines are closer together when the apparatus is immersed in water. 26.13. Set Up: The largest value can have is 1.00. Bright fringes are located at angles given by Solve: (a) For Therefore, the largest m for fringes on the screen is There are bright fringes, the central one and 19 above and 19 below it.
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