Problem you want to photograph a circular diffraction, Ask an Expert

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Problem: You want to photograph a circular diffraction pattern whose central maximum has a diameter of 1.2cm. You have a helium-neon laser (Î»=633nm) and a 0.16-mm-diameter pinhole.

Part A: How far behind the pinhole should you place the viewing screen?

Please help to determine how far behind the pinhole should you place the viewing screen!

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