# Intuitive explanation for slit separation affecting fringe separation?

I know the formula which proves fringe separation is inversely proportional to slit separation in the double slits, but is there an intuitive explanation to show that as slit separation increases, fringe separation decreases?

The following animation shows the fact you mentioned, namely the separation scales inversely for the interference pattern on the screen. The Blue curve is the norm-squared of the Fourier transform of a single slit (a single rectangular function), and the orange curve is the norm-squared of the Fourier transform of two rectangles separated by a distance $$d$$. For the purpose of aesthetic, I multiplied the blue curve by a factor of two ( thanks to Pieter for pointing out that )