Consider a single-slit diffraction pattern caused by a slit of width a. There is a minimum at sin θ equal to slightly more than λ/a exactly λ/a very nearly 2λ/a slightly less than λ/a exactly λ/2a
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Consider a single-slit diffraction pattern caused by a slit of width a. There is a minimum at sin θ equal to slightly more than λ/a exactly λ/a very nearly 2λ/a slightly less than λ/a exactly λ/2a