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7. [-/1 Points] DETAILS SERCP11 24.2.OP.001. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER An optician wishes to determine the wavelength of the light in a
7. [-/1 Points] DETAILS SERCP11 24.2.OP.001. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER An optician wishes to determine the wavelength of the light in a laser beam. To do so, she directs the beam toward a partition with two tiny slits separated by 0.180 mm. An interference pattern appears on a screen that lies 5.25 m from the slit pair. The optician's measurements show that two adjacent bright interference fringes lie 1.56 cm apart on the screen. What is the laser's wavelength (in nm) ? nm Need Help? Read It 8. [-/2 Points] DETAILS SERCP11 24.2.OP.002. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A technician is performing Young's double-slit experiment for his supervisor. He directs a beam of monochromatic light to a pair of parallel slits, which are separated by 0.102 mm from each other. The portion of this light that passes through the slits goes on to form an interference pattern upon a screen, which is 4.50 meters distant. The light is characterized by a wavelength of 577 nm. (a) What is the optical path-length difference (in um) that corresponds to the fourth-order bright fringe on the screen? (This is the fourth fringe, not counting the central bright band, that one encounters moving from the center out to one side.) um (b) What path-length difference (in um) corresponds to the fourth dark fringe that one encounters when moving out to one side of the central bright fringe? um9. [-/2 Points] DETAILS SERCP11 24.2.OP.006. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A student installs a double-slit assembly 1.35 m from a viewing screen. The slits are separated by 0.0576 mm. (a) Suppose the student aims a beam of yellow light, with a wavelength of 590 nm, toward the slit assembly, and this makes an interference pattern on the screen. What distance (in cm) separates the zeroth-order and first-order bright fringes (a.k.a. maxima)? cm (b) Now suppose that blue light (with A = 411 nm) is used instead. What distance (in cm) will now separate the second-order and fourth-order bright fringes? cm
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