تداخل الموجة - التدخل, الشق المزدوج, إنكسار الأشعة - PhET فيت
Make waves with a dripping faucet, audio speaker, or laser! Add a second source to create an interference pattern. Put up a barrier to explore single-slit diffraction and double-slit interference. Experiment with diffraction through elliptical, rectangular, or irregular apertures.
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