# What is diffraction?

## Answer

Diffraction occurs when a wave bends around objects. Diffraction is also said to occur when a wave spreads after it has passed through a type of gap.

Huygens' principle states that waves can spread in spheres or circles when in two-dimensional and three-dimensional space. Diffraction is the reason why a microscope is unable to be used to see much smaller details. In general, microscopes are only able to see details that are bigger than the used wavelength. Optical microscopes are unable to be used for any objects that are smaller than a micrometer. Viruses are mostly smaller than a micrometer and are usually undetected by microscopes.

Reference:
Q&A Related to "What is diffraction?"
 X-ray Diffraction is X-rays scatter off of electrons, in a process of absorption and re-admission. Diffraction is the accumulative result of x-ray scattering of a group of electrons http://www.ask.com/web-answers/Science/Physics/wha...
 Change in the directions and intensities of a group of waves after passing by an obstacle or through an aperture whose size is approximately the same as the wavelength of the waves. http://wiki.answers.com/Q/What_is_diffraction
 Diffraction photography was used in spectroscopy to help record the chemical composition of objects studied by astronomers and was also used to determine the composition of different http://www.ehow.com/facts_5014847_diffraction-phot...
 Curious. The lines are often perpendicular to the edges of the features you're looking at. But it's hard to imagine what features in an LCD would lie at that angle. The gradient is http://www.quora.com/What-causes-this-diffraction-...
1 Additional Answer
Ask.com Answer for: what is a diffraction
dif·frac·tion
[dih-frak-shuhn]
NOUN [PHYSICS.]
1.
the phenomenon exhibited by wave fronts that, passing the edge of an opaque body, are modulated, thereby causing a redistribution of energy within the front: it is detectable in light waves by the presence of a pattern of closely spaced dark and light bands (diffraction pattern) at the edge of a shadow.
2.
the bending of waves, especially sound and light waves, around obstacles in their path.
Source: Dictionary.com
Top Related Searches
Explore this Topic
A diffraction grating in spectroscopy is an optical component used to spatially separate polychromatic light into its constituent optical frequencies. The various ...
Diffraction of light is a phenomenon in which light ray bends or breaks up into its component parts. That is, the bending of light around small obstacles and the ...
A common example of diffraction of light is looking at an object that is partially immersed in water, where the object appears to be in a different place. Sound ...
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com