Emission is something be spread out, while absorption is something being taken in.
Emission nebula glow and reflection nebula reflect the light form other stars
Absorption lines are produced when elements in the outer layers of a star absorb specific wavelengths of light, leading to dark lines in the spectrum. These lines indicate the presence of certain chemical elements in the star's atmosphere. Absorption lines from a cool gas cloud between a star and Earth can reveal the composition, density, and temperature of the cloud, providing valuable information about the interstellar medium.
The layer of the sun between the core and the convection zone is the radiative zone. In the radiative zone, energy moves outward primarily through the absorption and re-emission of photons by ionized atoms. This process takes place over millions of years as the energy slowly diffuses through this layer before reaching the convective zone.
The radiation zone is a region in the interior of a star where energy is transported outward by electromagnetic radiation, primarily in the form of photons. In this zone, energy is carried through the star's layers by the absorption and re-emission of photons. The radiation zone is located between the core and the convection zone of a star.
be shifted towards the red end of the spectrum due to the Doppler effect, known as redshift. This occurs because the wavelengths of light are stretched as the star moves away from the observer, causing the absorption lines to shift to longer wavelengths.
The lines are at the same frequencies
Absorption spectrum is a gap in the overall spectrum. It happen when light makes an electron jump to a higher orbital and light energy is absorbed. Emission spectrum is light emitted at particular wavelengths (where the absorption spectrum gaps are). It happens when an electron falls from a higher orbital and emits light energy in doing so.
Emission spectrum: lines emitted from an atom.Absorption spectrum: absorbed wavelengths of a molecule.
The number of lines in the emission spectrum is the same as in the absorption spectrum for a given element. The difference lies in the intensity of these lines; in emission, they represent light being emitted, while in absorption, they represent light being absorbed.
Both flame emission and atomic absorption spectroscopy are analytical techniques used to determine the concentration of elements in a sample. The main similarity is that they both rely on the excitation of atoms in the sample to emit or absorb specific wavelengths of light. The main difference is that in flame emission spectroscopy, the intensity of emitted light is measured, while in atomic absorption spectroscopy, the amount of light absorbed by the atoms is measured.
Each chemical element has a specific emission or absorption spectrum.
Atomic absorption is more sensitive to atomic emission when the excitation potential is greater than 3.5eV.
reflecttion is a part of incidentradiant but emission may be different of incident radiant.
Atomic absorption spectrometry is more sensitive than atomic emission spectrometry.
During emission, an electron in an atom transitions from a higher energy level to a lower energy level, releasing a photon in the process. In absorption, an electron absorbs a photon and transitions from a lower energy level to a higher energy level within the atom.
* emisssion of electron from the surface of the metal when light of suitable frequency falls-photoelectric emission. * emision of electron from the metal by quantum tunnling of electron.
The Raman effect is the inelastic scattering of light by molecules, resulting in a shift in wavelength. Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation. Both phenomena involve interactions between light and molecules but differ in the mechanism of light emission.