File:Particle size determination-simple experiment.pdf

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Original file ‎(1,239 × 1,752 pixels, file size: 903 KB, MIME type: application/pdf, 9 pages)

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English: Using a laser pointer and fine dust or lycopodium powder, theory is developed to determine the average diameter of tiny particles. Laser light is incident on the particles and the Fraunhofer diffraction pattern on a screen is photographed. The diffraction pattern is known as Airy pattern. By making measurements on the pattern, average size of the particle is determined. A drop of blood smeared on a glass plate can also be used. Diffraction photographs are available. Permission is obtained from an author to use his photographs and is ackonledged in the references as suggested by the author.
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Author J Sethuraman

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current12:56, 30 June 2013Thumbnail for version as of 12:56, 30 June 20131,239 × 1,752, 9 pages (903 KB)J Sethuraman (talk | contribs)User created page with UploadWizard

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