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Reference.org
Diffraction from slits
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<p>Diffraction processes affecting <a href="/facts/Wave/fU0HH6St">waves</a> are amenable to <a href="/facts/Quantity/E2jCKetq">quantitative</a> description and analysis. Such treatments are applied to a wave passing through one or more slits whose width is specified as a proportion of the <a href="/facts/Wavelength/kcJU0ymz">wavelength</a>. <a href="/facts/Numerical_approximation/QT9cYa9z">Numerical approximations</a> may be used, including the <a href="/facts/Fresnel_approximation/lxyq42M4">Fresnel</a> and <a href="/facts/Fraunhofer_diffraction/Mu3k0vL7">Fraunhofer approximations</a>. </p>