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ASSIG10 - Section Name Assignment 10 Diffraction Section...

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Section: ______ Name: ______________________________ Section Instructor: ______________________________ Assignment 10: Diffraction Concepts: diffraction single-slit diffraction circular diffraction patterns Rayleigh’s criterion multiple-slit diffraction diffraction gratings x-ray diffraction Reading in text: Chapter 36: Sections 1-3, 5a, 6-8, 10. Assignment: Quiz may be given on Tuesday April 14 or Wednesday April 15. Due in lecture on Monday April 13. 1. Monochromatic light of wavelength 440 nm is normally incident on a narrow slit. On a screen 2.00 m away, the distance between the second diffraction minimum and the central maximum is 1.8 cm. (a) Calculate the angle of diffraction of the second minimum. (b) Find the width of the slit. 2. (a) How would the pattern observed in problem 1 differ if a red laser ( λ = 660 nm ) were used instead? (b) What would happen if the width of the slit were now doubled? 3. In this problem you will make a rough estimate of the angular resolving power of the human eye as limited by diffraction for the finite aperture of the entrance pupil in front of the lens.
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