line spectra; line emission spectrum. Compare with band spectrum and continuous spectrum. A emission spectrum that contains very sharp peaks, corresponding to transitions between states in free atoms. For example, the line spectrum of hydrogen contains 4 sharp lines in the visible part of the spectrum.
Found on
http://antoine.frostburg.edu/chem/senese/101/glossary/l.shtml
(from the article `spectroscopy`) The emission and absorption spectra of the elements depend on the electronic structure of the atom. An atom consists of a number of negatively ... The spectrum of incandescent solids is said to be continuous because all wavelengths are present. The spectrum of incandescent gases, on the other ... Lig...
Found on
http://www.britannica.com/eb/a-z/l/53
An atomic emission or absorption spectrum.
Found on
http://www.chemistry-dictionary.com/definition/line+spectrum.php
A pattern of lines, each corresponding to an image of the entrance slit of the spectrometer, seen when light is either emitted by or interrupted by a hot rarefied gas. The pattern is characteristic of the gas, and the wavelength at which the features are seen to occur is indicative of the velocity o...
Found on
http://www.daviddarling.info/encyclopedia/L/line_spectrum.html
a spectrum having non-zero values only for certain discrete values of frequency, or, by extension, in the vicinity of these values Example of line spectrum: the sequence of coefficients of the Fourier series representing a periodic signal or noise.
Found on
http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=702-04-46
a spectrum consisting of one or more spectral lines
Found on
http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=731-06-23
sound spectrum containing only discrete frequency components
Found on
http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=801-21-16
An atomic emission or absorption spectrum.
Found on
http://www.encyclo.co.uk/local/20728
Plural: Line Spectra. A spectrum of light with only certain wavelenghts or colours present. (See also continuous spectrum). If you use a direct vision spectroscope to view light from a (yellow) sodium vapour street-lamp, you will see that only a few wavelengths are present. This is an emission line spectrum and is unique to sodium. Sodium can also ...
Found on
http://www.users.zetnet.co.uk/computing/MainPage/SecDepts/Physics/Resources
[
n] - a spectrum in which energy is concentrated at particular wavelengths
Found on
http://www.webdictionary.co.uk/definition.php?query=line%20spectrum
noun a spectrum in which energy is concentrated at particular wavelengths; produced by excited atoms and ions as they fall back to a lower energy level
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.
