In this lab, you can explore the diffraction of waves through a single slit and double-slit interference pattern. Observe how the light passing through a single slit forms a diffraction pattern somewhat different from those formed by double slits or diffraction gratings. Note that in a single-slit diffraction pattern the central maximum is larger than maxima on either side and that the intensity decreases rapidly on either side. In contrast, light passing through a double-slit produces evenly spaced lines that dim slowly on either side of the center.
Use the sliders to adjust the slit width, the distance between the slits, and the wavelength of the light. Select a single slit, double slit, or double source.
Observe the changes in the output pattern as you modify these.
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