Counter-propagating light with a vacuum wavelength of 585 nm interferes inside a medium with refractive index 1.41. What is the minimum separation of fringes (in nm)?
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- A double-slit arrangement produces interference fringes for sodium light (l = 589 nm) that are 0.20° apart.What is the angular separation if the arrangement is immersed in water (n = 1.33)?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?The rhinestones in costume jewelry are glass with index of refraction 1.50. To make them more reflective, they are often coated with a layer of silicon monoxide of index of refraction 2.00. What is the minimum coating thickness needed to ensure that light of wavelength 467 nm and of perpendicular incidence will be reflected from the two surfaces of the coating with fully constructive interference? Number Units
- What visible wave length will be reflected in this scenario: A 700 nm thick soap film floats on a plate. From the air, white light is struck onto the film at a normal incidence. the wavelength of visible light to air is 400 nm to 700 nm. The index of the soap film is 1.74 and 1.58 for the plate.A thin film with an index of refraction of 1.50 is placed in one of the beams of a Michelson interferometer. If this causes a shift of 8 bright fringes in the pattern produced by light of wavelength 480 nm, what is the thickness of the film?When the double slits are a great distance from the screen in a double-slit setup, it can be shown that the position of the mth bright fringe from the central maximum fringe is given by the equation y(m) = (m?L)/d . Calculate the wavelength of light (in nm) that produces fringes that are 7.52 mm apart on a screen 7.39 m from double slits separated by 0.120 mm
- If a soap bubble is 120 nm thick, what wavelength is most strongly reflected at the center of the outer surface when illuminated normally by white light? Assume that the index refraction of air is na 1 (the actual value is 1.0003) and the index refraction of soap is ns = 1.35.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?