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Diffraction occurs when light(beam/ray of light) or other system of waves such as.... passes sharp edges or goes through narrow slits(aperture), the rays are deflected(spread out) and produce fringes of light and dark bands.
Diffraction of light
Diffraction effects are classified into either Fresnel or Fraunhofer types.
Fresnel diffraction is concerned mainly with what happens to light in the immediate neighborhood of a diffracting object or aperture, so is only of interest when the illumination source is close by.
Fraunhofer diffraction is the light-spreading effect of an aperture when the aperture (or object) is lit by plane waves, i.e., waves that effectively come from a source that is infinitely far away.
TERMS USED AND THEIR DEFINITIONS* apperture
- apperture
- waves
- fringes
SCOPE
SCOPE OF DIFFIRACTION
APPLICATION OF DIFFRACTION
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