When light of wavelength λ passes through as a diffraction grating the highest order bright fringe that is seen is m=7. What does this imply about the slit spacing, d, in the grating?
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When light of wavelength λ passes through as a diffraction grating the highest order bright fringe that is seen is m=7. What does this imply about the slit spacing, d, in the grating?
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- In a double slit experiment light of wavelength 650 nm passes through two 3.00 µm wide slits whose centers are 9.00 µm apart and is viewed on a screen 2.50 m away from the slits. (a) What is the distance along the screen between the second order maxima and the central maximum? (b) What is the ratio of the intensity of the second order maxima and the intensity of the central maximum? (c) How many interference maxima are visible in the central maximum of the diffraction envelope? (d) Include a sketch of the situation and a plot of the intensity versus position along the screen.A slit of width 0.20 mm is illuminated with monochromatic light of wavelength 480 nm, and a diffraction pattern is formed on a screen 1.0 m from the slit. a) What is the width of the central maximum? b) What are the widths of the second- and third-order maxima?When monochromatic light of wavelength 495 nm is passes through a diffraction grating with 440 lines/mm, what is the highest order bright fringe that is seen.
- A single slit of width 4.50 x 10 ºm produces a first-order dark fringe at some angle. If the width of the slit is now changed to 3.08 × 10-ºm, a second-order dark fringe is found at three times the previous angle. What is the wavelength of the light?A diffraction pattern forms when light passes through a single slit. The wavelength of the light is 591 nm. Determine the angle that locates the first dark fringe when the width of the slit is (a)3.3 x 10^-4 m and 3.3 x 10^-6 mThe two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm (red) and 486 nm (blue). Light from a hydrogen lamp illuminates a diffraction grating with 460 lines/mm, and the light is observed on a screen 1.50 m behind the grating. What is the distance between the first-order red and blue fringes?
- When green (550 nm) light is shone through a double slit the angle of the first dark fringe is 1.9 degrees. Calculate the angle in degrees of the second dark fringe.A double-slit arrangement produces bright interference fringes for sodium light (λ = 644 nm) that are angularly separated by 0.40° near the center of the pattern. What is the angular fringe separation if the entire arrangement is immersed in water, which has an index of refraction of 1.33?A double slit experiment using 532 nm light produces an interference pattern with the 1st order maxima separated by an angle of 0.115° from the central maxima. At what distance away should a viewing screen be placed such that the 1st and 2nd order maxima are separated by 6.00 mm?