Double Slit Diffraction

The pattern formed by the interference and diffraction of coherent light is distinctly different for a single and double slit. The single slit intensity envelope is shown by the dashed line and that of the double slit for a particular wavelength and slit width is shown by the solid line.

Double slit and multiple slits
Analysis of double slit interference

Diffraction concepts

Fraunhofer diffraction
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