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- Diffraction effects are the deviations from rectilinear propagation that occurs when light encounters edges, screens and apertures. These effects were explained in 1816 by French physicist Augustin-Jean Fresnel.
The effects of diffraction are often seen in everyday life. The most striking examples of diffraction are those that involve light; for example, the closely spaced tracks on a CD or DVD act as a diffraction grating to form the familiar rainbow pattern seen when looking at a disc.
The bending of a wave around the edges of an opening or an obstacle is called diffraction. Diffraction is a wave characteristic that occurs for all types of waves. If diffraction is observed for a phenomenon, it is evidence that the phenomenon is produced by waves.
Oct 11, 2024 · Diffraction takes place with sound; with electromagnetic radiation, such as light, X-rays, and gamma rays; and with very small moving particles such as atoms, neutrons, and electrons, which show wavelike properties. One consequence of diffraction is that sharp shadows are not produced.
- The Editors of Encyclopaedia Britannica
Diffraction effects are the deviations from rectilinear propagation that occurs when light encounters edges, screens and apertures. These effects were explained in 1816 by French physicist Augustin-Jean Fresnel.
Explain behaviors of waves, including reflection, refraction, diffraction, interference, and coherence, and describe applications based on these behaviors. Perform calculations related to applications based on wave properties of light.
Dec 28, 2020 · Diffraction is the bending of waves around obstacles or corners. All waves do this, including light waves, sound waves and water waves. (Even subatomic particles like neutrons and electrons, which quantum mechanics says also behave like waves, experience diffraction.) It's typically seen when a wave passes through an aperture. Advertisement.
Diffraction gratings work both for transmission of light, as in Figure \(\PageIndex{3}\), and for reflection of light, as on butterfly wings and the Australian opal in Figure \(\PageIndex{4a}\). Natural diffraction gratings also occur in the feathers of certain birds such as the hummingbird.
