## What is the Double Slit? A 5 Minute Introduction

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 & =…