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What are the similarities between emission and absorption spectra?
Wiki User
∙ 10y ago
The lines are at the same frequencies
Wiki User
∙ 10y ago
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Stars produce different spectra mainly because?
The cavity radiation spectrum comes from surface temperature. Bright line (emission) spectra come from hot elements near the surface. Dark line (absorption) spectra come from cooler elements further out. Because they're at different temperatures and have slightly different elemental ratios, each star produces a unique "fingerprint".
Why are there empty spaces in the emission spectrum?
"Emission Spectrum" can mean a number of things... Many objects emit light and they all have an emission spectrum, that is a set of wavelengths of light that they give out. The emission spectrum for an L.E.D. bulb for instance is pretty narrow, just one visible colour. The emission spectrum of a star is very wide, encompassing non-visible light as well. It is probably these stellar emission spectra you are referring to, so I'll go on from that assumption. The fusion processes within a star (at most levels from core to surface, but mostly in the core) create most of a spectrum, but some of this light is absorbed by the outermost layers. That is why we see gaps, and molecules of certain types absorb certain parts of the spectrum, so we use the spectrum to determine composition. We also see spectra from diffuse bodies like nebulae. These are, broadly, of 2 types, emission and absorption. Absorption spectra occur when we observe a known star through the cloud, and extra lines missing beyond what we expect of the star will be emblematic of the constituents of the cloud. Emission spectra from clouds can also occur, that is when the light falling on them is not aligned with us, what we see is several narrow bands of light, which has been absorbed and re-emitted by the cloud.
Are there mira and spectra in Bakugan Gundalian Invaders?
No, Mire and Spectra arnt in BGI
Is there a guy named spectra phantom you bakugan new vestroia?
no but there is a guy called spectra who owns maxis Helios
What are two kinds of information that astronomers can collect from stars by using spectrographs?
All elements have their own discrete power spectra. To excite a hydrogen atom requires a different amount of energy than to excite a helium atom. The energy of a photon is proportional to its wavelength. So by looking at the wavelengths in the absorption or emission lines in the spectra and comparing them to known energy levels (empirical or quantum mechanic derived) of different elements, a great deal can be said about a stars outer layer.
What is the difference between absorption and emission spectrum?
Emission spectrum: lines emitted from an atom.Absorption spectrum: absorbed wavelengths of a molecule.
How Many types of Infrared Spectra?
There are three main types of infrared spectra: absorption spectra, emission spectra, and reflection spectra. Absorption spectra are produced when a material absorbs infrared energy, emission spectra are produced when a material emits infrared radiation, and reflection spectra result from the reflection of infrared radiation off a material.
How can you Distinguish absorption spectrum from emission spectrum?
Emission spectra are bright-line spectra, absorption spectra are dark-line spectra. That is: an emission spectrum is a series of bright lines on a dark background. An absorption spectrum is a series of dark lines on a normal spectrum (rainbow) background.
Do lines of a particular element appear at the same wavelength in both emission and absorption line spectra?
Yes.
How do scientists use different spectra to figure out the composition of the stars outer layer?
Different chemical elements emit (or absorb) certain specific frequencies of light. When the light from a star is split in to it's rainbow spectrum of light, certain parts of the spectrum will be black (in absorption spectra) or brighter (in emission spectra). By comparing these lines to the known emission and absorption spectra of elements, the composition of a stars atmosphere can be determined.
What has the author John David Brown written?
John David Brown has written: 'The visible emission' -- subject(s): Absorption spectroscopy, Emission spectroscopy, Spectra, Iodine
What is an emission spectra used for?
The emission spectrum can be used to determine the composition of a material
How does color form?
Colors are able to form by water droplets that can break sunlight into several colors of the spectrum. Colors can also form by light absorption, emission spectra and reflection.
How absorption spectra can be used in the identification of unknowns?
Each substance has known specific maximum of absorption. Comparing spectra substances can be identified.
What has the author Alexander Poularikas written?
Alexander Poularikas has written: 'F/NAS/pressure temperature retrieval techniques' -- subject(s): Meteorological parameters, Temperature distribution, Atmospheric temperature, Radiative transfer, Infrared radiation, Emission spectra, Absorption spectra
What is the absorption spectra of phloroglucinol?
540 nm
Who discovered the atomic emission spectra?
thomas Jefferson
