A helium-neon laser l583 nm illuminates a single slit and
A helium-neon laser (l=583 nm) illuminates a single slit and is observed on a screen 2 m behind the slit. The distance between the first and second minima in the diffraction pattern is 3.64 mm. What is the width (in mm) of the slit?
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a helium-neon laser l583 nm illuminates a single slit and is observed on a screen 2 m behind the slit the distance
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