AliSabar9491 AliSabar9491

22-05-2023
Physics

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a helium-neon laser (λ=633nm) illuminates a single slit and is observed on a screen 1.55 m behind the slit. the distance between the first and second minima in the diffraction pattern is 4.90 mm. What is the width (in mm) of the slit?

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