recitation13-wave_optics-solutions

recitation13-wave_optics-solutions - increased? (a) The...

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Physics 2760 Recitation 12 / 02 /08 The figure shows the interference pattern obtained in a double-slit experiment using light of wavelength 600 nm. 1. Which fringe is the same distance from both slits? (a) A (b) B (c) C (d) D (e) E 2. Which fringe is the third order maximum? (a) A (b) B (c) C (d) D (e) E 3. Which fringe is 300 nm closer to one slit than to the other? (a) A (b) B (c) C (d) D (e) E 4. Which fringe results from a phase difference of 4 π ? (a) A (b) B (c) C (d) D (e) E 5. Which one of the following phenomena would be observed if the wavelength of light were increased? (a) The fringes would be brighter. (b) More bright fringes would appear on the screen. (c) The distance between dark fringes would decrease. (d) Single-slit diffraction effects would become non-negligible. (e) The angular separation between bright fringes would increase. 6. Which one of the following phenomena would be observed if the distance between the slits were
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Unformatted text preview: increased? (a) The fringes would become brighter. (b) The central bright fringe would change position. (c) The distance between dark fringes would increase. (d) The distance between bright fringes would increase. (e) The angular separation between the dark fringes would decrease. 7. A 500 lines/mm diffraction grating is illuminated by light of wavelength 510 nm. How many diffraction orders are seen, and what is the angle of each? 8. A double slit is illuminated simultaneously with orange light of wavelength 600 nm and light of an unknown wavelength. The fourth order bright fringe of the unknown wavelength overlaps the third order bright orange fringe. What is the unknown wavelength? 9. The opening to a cave is a tall, 30-cm-wide crack. A bat that is preparing to leave the cave emits a 30 kHz ultrasonic chirp. How wide is the sound beam 100 m outside the cave opening? Use v sound = 340 m/s....
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recitation13-wave_optics-solutions - increased? (a) The...

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