34. Laser light with a wavelength of 632.8 nm is directedQC through one slit or two slits and allowed to fall on a screen2.60 m beyond. Figure P37.34 shows the pattern on thescreen, with a centimeter ruler below it. (a) Did the lightpass through one slit or two slits? Explain how you candetermine the answer. (b) If one slit, find its width. If twoslits, find the distance between their centers.5 6 7 8 9 10 11 12 13Figure P37.34

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The Rayleigh criterion provides a convenient way to describe the theoretical resolution (e.g. an ability to distinguish two bright objects ) of an optical system. The criterion states that two small bright sources of light can be resolved if the first diffraction minimum of the image of one source point just coincides with of further apart then the first maximum of another (see figure below). A converging lens, 34.2 mm in diameter, is used to form images of distant objects. Considering the diffraction by the lens, what angular separation must two distant point objects have in order to satisfy Rayleigh's criterion? Assume that the wavelength of the light from the distant objects is 431 nm. Provide your answer in millidegrees (mdeg). Answer: Choose... +
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