Double Slit Experiment
The double slit experiment
Two pointlike sources (blue dots) of waves (light green circles) are located at a distance to each other. Each source emits waves at wavelength . You can change both and to see what happens. Dark green spots are mark the places where the interference of the two waves in constructive, i.e. where the amplitude of the resulting wave is the maximum.
Waves travel and crash against a screen (in magenta).