What is photoelectric absorption?
Photoelectric absorption. In a photoelectric absorption interaction, an incoming gamma-ray transfers virtually all of its energy to an atomic electron, usually the most tightly bound (K-shell) electron of an atom.
What is absorption and emission?
Emission is when electrons return to energy levels. Absorption is when electrons gain energy and jump to higher energy levels. Absorption and emission of light reveals details about the atomic structure of an atom by telling us the amount of energy levels and the space between the energy levels.
What is absorption spectrum biology?
The absorption spectrum indicates the wavelengths of light absorbed by each pigment (e.g. chlorophyll) The action spectrum indicates the overall rate of photosynthesis at each wavelength of light.
What is the definition of absorption of light?
Light absorption is a process by which light is absorbed and converted into energy. An example of this process is photosynthesis in plants. However, light absorption doesn’t occur exclusively in plants, but in all creatures/inorganic substances.
What is meant by Compton effect?
Compton effect, increase in wavelength of X-rays and other energetic electromagnetic radiations that have been elastically scattered by electrons; it is a principal way in which radiant energy is absorbed in matter.
What is differential absorption in radiography?
Differential absorption is the difference between the x-ray photons that are absorbed photoelectrically versus those that penetrate the body. The term differential is used because varying anatomic parts do not absorb the primary beam to the same degree.
What is difference between absorption and emission spectrum?
The main difference between emission and absorption spectra is that an emission spectrum has different coloured lines in the spectrum, whereas an absorption spectrum has dark-coloured lines in the spectrum.
What is the difference between emission absorption and continuous spectrum?
The major difference between the emission spectrum and the absorption spectrum is that the absorption spectrum is continuous spectra whereas the emission spectrum is the discontinuous or line spectra.
What you mean by absorbance?
Absorbance (A), also known as optical density (OD), is the quantity of light absorbed by a solution. Transmittance is the quantity of light that passes through a solution.
What is absorption in biology?
(ub-SORP-shun) The process of taking nutrients from the digestive system into the blood so they can be used in the body.
What is absorption in physics definition?
absorption, in wave motion, the transfer of the energy of a wave to matter as the wave passes through it.
What is the absorption of heat?
Heat is a type of ENERGY. When absorbed by a substance, heat causes inter-particle bonds to weaken and break which leads to a change of state (solid to liquid for example). Heat causing a phase change is NOT sufficient to cause an increase in temperature.