2023-05-01T05:07:34+03:00[Europe/Moscow] en true There is no phase change when light reflects from.., There is a phase change equal to π when light reflects from a region with a..., There is phase _____change in the refracted wave., For air, there is always a phase difference between two waves:, True or False: When light reflects off the boundary of a medium with a higher index of refraction, it experiences a phase change equal to π., True or False: If light is reflected of a soft surface (lower n), it experiences a phase change of π/2., For constructive interference, the phase difference (deltaphi) is a (even or odd) multiple of π, For destructive interference, the phase difference (deltaphi) is a (even or odd) multiple of π, For what value of phase difference we will have a constructive interference? A.) 2π B.) π C.) π/4 D.) π/2, the visible light spectrum consists of what wavelengths?, To find what visible wavelength will be constructive reflected from a film..., ***remember how wavelength changes when changing mediums***, To find smallest possible thickness, use, How can you find the angular location of a dark for a single-slit diffraction?, In a single-slit diffraction experiment, as the width of the slit is made smaller, the width of the central maximum of the diffraction pattern becomes flashcards
Unit 4 - Interference of Reflected Waves and some more lens stuff

Unit 4 - Interference of Reflected Waves and some more lens stuff

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  • There is no phase change when light reflects from..
    A region with lower (n) index of refraction (aka soft surface)
  • There is a phase change equal to π when light reflects from a region with a...
    Higher index of refraction or from a solid surface (hard boundary)
  • There is phase _____change in the refracted wave.
    NO
  • For air, there is always a phase difference between two waves:
  • True or False: When light reflects off the boundary of a medium with a higher index of refraction, it experiences a phase change equal to π.
    True
  • True or False: If light is reflected of a soft surface (lower n), it experiences a phase change of π/2.
    False; there would be no phase change.
  • For constructive interference, the phase difference (deltaphi) is a (even or odd) multiple of π
    even
  • For destructive interference, the phase difference (deltaphi) is a (even or odd) multiple of π
    odd
  • For what value of phase difference we will have a constructive interference? A.) 2π B.) π C.) π/4 D.) π/2
    A.) 2π a.     since it is a constructive interference and it must be an even multiple.
  • the visible light spectrum consists of what wavelengths?
    380 to 750 mn
  • To find what visible wavelength will be constructive reflected from a film...
    Find phase difference, and solve for lambda and plug in (m) until there are multiple answers that are in the visible light spectrum wavelengths.
  • ***remember how wavelength changes when changing mediums***
    From air to solid divide wavelength by (n) index of refraction
  • To find smallest possible thickness, use
    m=0
  • How can you find the angular location of a dark for a single-slit diffraction?
         Tan theta = y/LWhere a is width of slits m=order of dark fringe
         Tan theta = y/LWhere a is width of slits m=order of dark fringe
  • In a single-slit diffraction experiment, as the width of the slit is made smaller, the width of the central maximum of the diffraction pattern becomes
    LARGER
    LARGER