Emission Spectrum

Emission spectrum: A third possibility occurs if an observer is not looking directly at a hot black body source but instead at a diffuse cloud of gas that is not a black body.

emission spectrum (bright-line spectrum): A spectrum containing emission lines.
energy: The capacity of a natural system to perform work - for example, thermal energy.

Emission Spectrum
A spectrum consisting of emission lines produced in the laboratory by a glowing gas under low pressure.
Emissivity ...

emission spectrum The pattern of spectral emission lines, produced by an element. Each element has its own unique emission spectrum.

Emission Spectrum: The spectrum of light from an object, such as a star.

EMISSION SPECTRUM
An emission spectrum (also called a bright-line spectrum) is a discontinuous spectrum (discrete bright bands) that is emitted by atoms or molecules.

Emission spectrum (fluorescence spectroscopy)Emission standardEmission test cycle
Emission theoryEmission theory (vision)Emissions control
Emissions tradingEmitEmita Babazadeh ...

Emission spectrum
The emission spectrum of an Chemical element or Chemical compound is the relative intensity of electromagnetic radiation of each frequency Emission by atoms or molecules of that element or compound when they are excited....

An emission spectrum of the olar chromosphere, obtained by placing an objective prism in front of the telescopic lens the instant before (or after) totality in a olar eclipse. [H76]
Flat ...

The emission spectrum of the chromosphere that is visible for the few seconds during a total solar eclipse when the moon has covered the photosphere but has not covered the chromosphere.
Flat Universe ...

Hydrogen emission spectrum lines in the visible range. These are the four visible lines of the Balmer series ...

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130. Emission Spectrum
A spectrum containing emission lines.
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131. Energy Level
One of a number of states an electron may occupy in an atom, depending on its binding energy.

The synchrotron emission spectrum follows a power-law decay, and is constructed by adding the contributions from individual electrons.

By observing the emission spectrum of hydrogen, Niels Bohr determined early in the twentieth century what the energy differences between the various energy levels must be.

The absorption spectrum is a characteristic of the absorbing medium, just as an emission spectrum is a characteristic of a radiator.

The thermal emission spectrum is called a continuum spectrum because light is emitted over a continuous region of the spectrum.

An emission spectrum - remember, that is what is produced by a hot gas. The emission spectrum of hydrogen has a very strong red line in it, so there is often a rather pink-ish glow to these regions.

This is manifested in the emission spectrum of nebulae. Today, scientists use this phenomenon to observe what elements a certain star is composed of. It is also used in the determination of the distance of a star, using the so-called red shift.

The spectrum of incandescent gases, on the other hand, is called a line or emission spectrum because only a few wavelengths are emitted. These wavelengths appear to be a series of parallel lines because a slit is used as the light-imaging device.

Kirchhoff's Laws: These are a set of rules for remembering when and why one should observe a continuous spectrum of light, an emission spectrum, and/or an absorption spectrum. Solid bodies or dense gases or liquids give off continuous spectra.

A bright-line spectrum (also called an emission spectrum) is a discontinuous spectrum (discrete bright bands) that is emitted by atoms or molecules. The emission spectrum is characteristic of the chemicals which are emitting the photons.

If the distance between a star and Earth is increasing, the lines in the absorption or emission spectrum will shift slightly to the lower frequency, or red end of the spectrum. If the distance is decreasing, the lines will shift toward the blue end.

Balmer series (J. Balmer; 1885)
An equation which describes the emission spectrum of hydrogen when an electron is jumping to the second orbital. Four of the lines are in the visible spectrum; the remainder are in the ultraviolet.

PFUND SERIES - Hydrogen series which describes the emission spectrum produced when an electron jumps to the fifth orbital. All of the lines are in the infrared portion of the spectrum.

A material's absorption spectrum shows the fraction of incident electromagnetic radiation absorbed by the material over a range of frequencies. An absorption spectrum is, in a sense, the opposite of an emission spectrum.

See also: Emission, Spectrum, Light, Energy, Wavelength