Unit of light energy
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LUMENUnit of light energy
RADSUnits of light energy.
PHOTONQuantum of light energy.
photooxidationoxidation under the influence of radiant energy, as light
photoreductionchemical reduction under the influence of radiant energy, as light
photooxidationsPHOTOOXIDATION, oxidation under the influence of radiant energy, as light
photoreductionsPHOTOREDUCTION, chemical reduction under the influence of radiant energy, as light
radiating(of light, heat, or other energy) Be emitted in such a way
focusing(of a lens) Concentrate (light, radio waves, or energy) into a sharp beam
opaquestblocking the passage of radiant energy and especially light exhibiting opacity (see opacity)
opaquerblocking the passage of radiant energy and especially light exhibiting opacity (see opacity)
focusses(of a lens) Concentrate (light, radio waves, or energy) into a sharp beam
radiatingEmit (energy, esp. light or heat) in the form of rays or waves
opaquesblocking the passage of radiant energy and especially light exhibiting opacity (see opacity)
focussing(of a lens) Concentrate (light, radio waves, or energy) into a sharp beam
transmittanceThe ratio of the light energy falling on a body to that transmitted through it
transmittancesThe ratio of the light energy falling on a body to that transmitted through it
photochemicalof, relating to, or resulting from the chemical action of radiant energy and esp light
photochemicallyPHOTOCHEMICAL, of, relating to, or resulting from the chemical action of radiant energy and esp light
focussing(of light, radio waves, or other energy) Become concentrated into a sharp beam of light or energy
focusing(of light, radio waves, or other energy) Become concentrated into a sharp beam of light or energy
focusses(of light, radio waves, or other energy) Become concentrated into a sharp beam of light or energy
photoautotrophan organism capable of synthesizing its own food from inorganic substances using light as an energy source
photoautotrophsPHOTOAUTOTROPH, an organism capable of synthesizing its own food from inorganic substances using light as an energy source
photographythe process of producing images by the action of radiant energy and esp light on a sensitive surface
photographiesPHOTOGRAPHY, the process of producing images by the action of radiant energy and esp light on a sensitive surface
photosynthesisthe biochemical process in which light energy is absorbed by chlorophyll, and is used to fuel the building of sugar molecules
photosynthesesPHOTOSYNTHESIS, the biochemical process in which light energy is absorbed by chlorophyll, and is used to fuel the building of sugar molecules
scintillationA small flash of visible or ultraviolet light emitted by fluorescence in a phosphor when struck by a charged particle or high-energy photon
scintillationsA small flash of visible or ultraviolet light emitted by fluorescence in a phosphor when struck by a charged particle or high-energy photon
photoemissionthe release of electrons from a usually solid material (as a metal) by means of energy supplied by incidence of radiation and esp light
photonsA particle representing a quantum of light or other electromagnetic radiation. A photon carries energy proportional to the radiation frequency but has zero rest mass
photoemissionsPHOTOEMISSION, the release of electrons from a usually solid material (as a metal) by means of energy supplied by incidence of radiation and esp light
chlorophyllA green pigment, present in all green plants and in cyanobacteria, responsible for the absorption of light to provide energy for photosynthesis. Its molecule contains a magnesium atom held in a porphyrin ring
physicsThe branch of science concerned with the nature and properties of matter and energy. The subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms