Light from a helium-neon laser 633 nm passes through a
Light from a helium-neon laser (? = 633 nm) passes through a circular aperture and is observed on a screen 4.5 m behind the aperture. The width of the central maximum is 3.0 cm. What is the diameter (in mm) of the hole?
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Light from a helium-neon laser (? = 633 nm) passes through a circular aperture, What is the diameter (in mm) of the hole
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Some factors that contribute to a child being accepted or rejected by their peers can be their communication skills such as how the listen and respond to peers.
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