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Why is the solar spectrum an absorption spectrum rather than an emission spectrum?
Wiki User
∙ 12y ago
The sun has 3 layers - the photosphere, the chromosphere, the corona.
Photosphere is the visible surface and gives the absorption spectrum.
Chromosphere is the pinkish discharge encircling the Sun, visible only during a total eclipse. This gives the emission spectrum.
Corona is the halo encircling the chromosphere. THis gives the coronal spectrum.
Wiki User
∙ 12y ago
Wiki User
∙ 14y agoLets take sodium as an example to answer this.
In the case of emission spectra the missing wavelengths are not absorbed by sodium vapour and in the case of absorption spectra, the missing wavelengths are absorbed the sodium vapour because the light of these wavelengths is exactly of the right energy to cause electron transitions within the sodium atoms.This is why, there is fewer spectral lines in absorbtion than in emmision spectrum.
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Does the Sun produce a continuous spectrum or an absorption spectrum?
The photosphere of the sun doesn't really produce a continuous spectrum; there are discontinuities corresponding to energy levels of various chemical elements, called spectral lines. Notably Helium was discovered in the absorption lines of the solar spectrum and only later discovered on Earth.
What conditions produce a dark-line spectrum?
An absorption spectrum can tell the astronomer or physicist what elements are in the starlight being observed. A diffraction grating is used to split the incoming light into a spectrum of colors. Sodium, for example, causes dark Fraunhofer lines at known points in the visible spectrum. Helium was discovered in the solar spectrum by Bunsen and Kirchoff using this technique. Hence the name derived from Helios for the Sun.
Which substance present in the atmosphere is responsible for the absorption of solar radiation with a wavelength less than 242 nm?
Oxygen is responsible for the absorption of solar radiation with a wavelength less than 242nm. UV radiation splits oxygen into atoms and the atoms combine with other oxygen molecules to form ozone. Generally, all multi-atom?æ compounds are capable of absorbing UV radiation when the wavelength is short.
Where did the name of the element helium come from?
It comes from the Greek word "helios" meaning "sun" after Pierre-Jules-César Janssen observed a new yellow line (587.49 nm) in the solar spectrum of the solar eclipse of 1868.
What type of fuel can be only used in certain geographic areas?
Solar
What were dark lines in the spectrum named for?
Dark lines especially in solar spectrum have been named as Fraunhofer lines. These line are good examples for line absorption spectrum
Fraunhofer lines in the solar spectrum are actually?
absorption lines due to the thin outer layer above the photosphere
The lower atmosphere is directly warmed by?
By the emission of the terrestrial radiation. Terrestrial radiation is emitted in the infrared long-wavelength part of the spectrum. It is terrestrial radiation rather than solar radiation that directly warms the lower atmosphere.
What does the presence of dark lines in the solar spectrum mean?
The dark lines represents the absorption of energy at that frequency, E=hf.
What is the relation between the electromagnetic spectrum of solar radiation and the absorption spectrum of chlorophyll?
Solar radiation peaks in energy in the mid-yellow range. Chlorphyll's absorption also peaks in this range. It is a demonstration of the adaption of plants to optimizing their production efficiency.
Does the Sun produce a continuous spectrum or an absorption spectrum?
The photosphere of the sun doesn't really produce a continuous spectrum; there are discontinuities corresponding to energy levels of various chemical elements, called spectral lines. Notably Helium was discovered in the absorption lines of the solar spectrum and only later discovered on Earth.
Are there as many absorption lines in the solar spectrum as there are elements present in the Sun?
There are a lot more. Each element has several possible absorption lines. In fact the element iron has several hundred lines.
What layer of the sun is responsible for the absorption of lines in the solar spectrum?
Light coming up from the centre of the Sun goes through the outer layer where it encounters absorbtion by elements in the outer layer, and this gives rise to absorbtion lines in the spectrum.
What has the author Marc S Allen written?
Marc S. Allen has written: 'High resolution atlas of the solar spectrum 2678-2831 A' -- subject- s -: Charts, diagrams, Solar Spectrum, Spectrum, Solar, Spectrum, Ultraviolet, Ultraviolet Spectrum
What has the author Charles Edward St John written?
Charles Edward St. John has written: 'Revision of Rowland's Preliminary table of solar spectrum wave-lengths' -- subject(s): Solar Spectrum, Spectrum analysis, Spectrum, Solar
What does absorption use?
solar energy
What has the author J Houtgast written?
J. Houtgast has written: 'The variations in the profiles of strong Fraunhofer lines along a radius of the solar disc' -- subject(s): Solar Spectrum, Spectrum analysis, Spectrum, Solar
