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4. I You want to photograph a circular diffraction patterm whose central maximum has a diameter of 1.0 cm. You have a heliun- neon laser (λ=633 nm) and a 0.12-mm-diameter pinhole. How far behind the pinhole should you place the sereen thats to be photographed?


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Answer #1

ro - 0-1-22 貧ニ卜22A 122x A 3 0.77 う77 . 69 cm 、

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