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Diffraction is the interference or bending of waves around the corners of an obstacle or through an aperture into the region of geometrical shadow of the obstacle/aperture. The diffracting object or aperture effectively becomes a secondary source of the propagating wave.
28 Δεκ 2020 · Diffraction is the bending of waves around obstacles or corners. It happens to light waves, sound waves and water waves. This bending often causes waves to interfere with themselves, creating diffraction patterns. Diffraction also limits the resolution of anything using an aperture, like cameras.
17 Νοε 2022 · An example of diffraction is seen in the atmosphere. Diffracted light bends around atmospheric particles like tiny water droplets that are present in clouds producing light and dark fringes or colored bands. The diffraction of sunlight by clouds is a common phenomenon referred to as a silver lining.
Such objects have actually been made and are in common use—they are called diffraction gratings. In one of its forms, a diffraction grating consists of nothing but a plane glass sheet, transparent and colorless, with scratches on it.
This video works through the math needed to predict diffraction patterns that are caused by single-slit interference.
Single-slit diffraction: When a light wave passes through a narrow single slit and strikes a screen, a diffraction pattern is formed. The pattern consists of a central bright fringe (maximum) surrounded by alternating bright and dark fringes (maxima and minima).
Diffraction describes a specialized case of light scattering in which an object with regularly repeating features (such as a diffraction grating) produces an orderly diffraction of light in a diffraction pattern.
