Definition/Summary The double-slit is a simple configuration used to demonstrate interference effects in waves. Equations At distances that are large compared to the spacing between the slits (i.e. the far-field), the interference maxima (bright fringes) occur at angles such that [tex]d \ \sin\theta \ = \ m \ \lambda[/tex] where [tex]\begin{align*}d & = \text{the slit...
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