How does interference vs diffraction affect the behavior of light waves in a double-slit experiment?

Interference in a double-slit experiment occurs when light waves overlap and either reinforce or cancel each other out, creating a pattern of light and dark fringes on a screen. Diffraction, on the other hand, causes light waves to spread out as they pass through the slits, leading to a wider pattern of interference fringes. Both interference and diffraction play a role in shaping the overall pattern of light in a double-slit experiment.