Physics, 04.08.2019 00:00 MileenaKitana
You want to estimate the diameter of a very small circular pinhole that you've made in a piece of aluminum foil. to do so, you shine a red laser pointer (λ = 632 nm) at the hole and observe the diffraction pattern on a screen 3.4 m behind the foil. you measure the width of the central maximum to be 12 mm .
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