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PH 223 22:4-6

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Richard Datwyler

on 27 September 2016

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Transcript of PH 223 22:4-6

"Because light fits between small spaces like the slits mentioned in this section, does that mean that the dark space and light space pattern happen with the every day light that we see, or is it something that only happens with a focused light beam like a laser?"
"Could we get more of an explanation on holography?"
A helium-neon laser (wavelength 633 nm) illuminates a single slit and is observed on a screen 1.5 m behind the slit. The distance between the first and second minima in the diffraction pattern is 4.75 mm. What is the width (in mm) of the slit?
A .50 mm wide slit is illuminated by light of wavelength 500 nm. What is the width (in mm) of teh central maximum on a screen 2.0 m behind the slit?
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