Light from a helium-neon laser (A = 633 nm) passes througha circular aperture and is
Chapter 17, Problem 34(choose chapter or problem)
Light from a helium-neon laser (A = 633 nm) passes througha circular aperture and is observed on a screen 4.0 111 behind theaperture. The width of the central maximum is 2.5 cm. What isthe diameter (in mm) of the hole?
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