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AP Physics 2
14.8 Double-Slit Interference and Diffraction Gratings
14.7 Diffraction
AdvancedMCQMathematicalProportional AnalysisConceptual18.6k
Double-slit arrangement with slit width \(a\) and separation \(d = 4a\).
Double-slit arrangement with slit width \(a\) and separation \(d = 4a\).
Monochromatic laser light of wavelength \(\lambda\) is incident normally on a double-slit system. Each slit has a width \(a\), and the center-to-center separation between the slits is \(d = 4a\). The resulting intensity pattern on a distant screen displays double-slit interference fringes modulated by the single-slit diffraction envelope. Which of the following correctly identifies the interference order \(m\) of the first missing maximum and the total number of bright interference fringes contained within the central diffraction envelope?

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