Question
Would a slit with a width of 300 nanometers or of 400 nanometers produce a wider diffraction pattern when illuminated by light of the same wavelength? Why?
Step 1
Step 1: For a single slit the first minima occur at sinθ = ±λ/a, so the angular spread (approximately θ ≈ λ/a for small angles) is inversely proportional to the slit width a — a smaller slit gives a larger diffraction angle. Show more…
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