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Stark effect
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Stark effect
noun
Physics. (often lowercase) the splitting into two or more components of the spectral lines of atoms in an electric field.
Origin:
named after J. Stark, who described it in 1913
named after J. Stark, who described it in 1913
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source
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Stark effect
is always a great word to know.
So is gas. Does it mean:
| the elasticlike force existing in the surface of a liquid caused by asymmetries in the intermolecular forces between surface molecules |
| a substance possessing perfect molecular mobility and the property of indefinite expansion, as opposed to a solid or liquid |
Collins
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Science Dictionary
Stark effect  (stärk) Pronunciation Key
The splitting of single spectral lines of an emission or absorption spectrum of a substance into several components when the substance is placed in an electric field. The effect occurs when several electron orbitals in the same shell, which normally have the same energy level, have different energies due to their different orientations in the electric field. Quantum mechanical predictions of this effect are extremely accurate, a fact that provided compelling early evidence for quantum mechanics. The Stark effect is named after its discoverer, German physicist Johannes Stark (1874-1957). Compare Zeeman effect. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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