This animation shows monochromatic light passing through a diffraction grating made of closely spaced slits, producing overlapping wavefronts that interfere constructively and destructively. Bright fringes appear where path differences equal whole wavelengths, while dark regions form between them. The animation visualizes the grating equation d sinθ = mλ, relating slit spacing, wavelength, and diffraction angle. Useful for physics students studying wave optics, spectroscopy, and the behavior of light through periodic structures.
Narrated · 16:9 · Preview before teaching · automatic layout checks do not establish subject accuracy
Show diffracting grating