Definitions for "Photon"
Related Terms:
Photons, Compton effect, Photoelectric effect, Photoelectron, Compton scattering, Stimulated emission, Bremsstrahlung, Spontaneous emission, Scintillator, Radiation, Ionizing radiation, Non-ionizing radiation, Planck's law, Excitation, Pair production, Synchrotron radiation, Geiger counter, Quantum, Emission spectrum, Quantum theory, Planck's constant, Wave-particle duality, Synchrotron, Photoelectric, Excited state, Cosmic rays, Gamma ray, Ionising radiation, Nonionizing radiation, Electromagnetic energy, Planck constant, Cosmic ray, Emission, Photonics, Linear energy transfer, Nuclear radiation, Beta radiation, Beam , Beta rays, Electromagnetic radiation, Alpha radiation, Radiant energy, Radioactive, Beta particles, Gamma radiation, Roentgen, Radioactivity, Thermal radiation, Gamma , Alpha ray
is the basic unit of light.
A gague boson that carries the electromagnetic force, also known as a quantum (particle) of light. See also: gague boson, electromagnetic force, quantum, Debriefing, Advanced Topics, Journey - Photon
A particle of light, unit of electromagnetic energy.
A particle of electromagnetic radiation having zero mass.
a unit of energy of radiation equal to h where h is Planck's constant ( 6.6261 x 10-34 J sec) and is the frequency of the radiation equal to the speed of light ( 2.9979 x 108 m/s) divided by the wavelength of the light
The fundamental particle or quantum of electromagnetic radiation (radiant energy).
The little packages of electromagnetic energy that can be particles and/or waves.
The gauge boson that mediates the force of electromagnetism. The photon is the quantum of light.
the basic unit of light transmission used to define the lowest (physical) layer in the OSI seven-layer model
A discrete energy unit of light. Photons behave like waves or particles, depending on the experiment and observer.
The indivisible unit, or quantum, of electro-magnetic radiation. The energy of the photons determines the nature of the radiation, from radio waves at the lowest energy levels, up through infra-red, visible, and ultra-violet light, to X-or gamma-rays, which have energy high enough to ionize atoms.
Discrete packets of energy that make up electromagnetic radiation.
unit carrier of electromagnetic radiation.
A small particle-like bundle of electromagnetic radiation.
A unit of energy of a light ray or other form of radiant energy. Most conventional radiation uses photons to deliver ionizing radiation.
High energy electromagnetic radiation, travelling at the speed of light.
The energy unit of visible light, having characteristics both of a wave as well as a discrete particle.
Elementary particle of light and other electromagnetic radiation.
Quantum of electromagnetic energy, a particle of light is a photon.
A quantity of energy emitted in the form of electromagnetic radiation; e.g., radio waves, light, x-rays, and gamma rays.
A quantum of light, having wave and particle-like properties.
A photon is a tiny, discrete bundle or unit of light.
A quantum of electromagnetic energy having both particle and wave properties. A photon has no charge or mass but possesses momentum and energy. from Webster's New World Dictionary
A unit or 'particle' of electromagnetic radiation, carrying a quantum of energy which is characteristic of that particular radiation.
unit particle of electro--magnetic radiation.
A photon is a name given to a quantum of electromagnetic energy. It is usually used to refer to photons of visible light if the part of the electromagnetic spectrum is not otherwise specified.
a unit of electromagnetic energy (light). Photons have no electric charge and are generally regarded as particles with zero mass.
(foe´ tohn) [Gr. photos: light] • A quantum of visible radiation; a "packet" of light energy.
A photon is a 'packet' of light energy generated by moving electric charges. Sometimes it is useful to think of photons as particles, at other times they are best thought of as waves.
In quantum theory, light is propagated in discrete packets of energy called photons. The quantity of energy in each packet is called a quantum.
Discrete packet of light energy; the amount of which depends on the color or wavelength of light
The fundamental quantum of light. The energy of a photon is proportional to its frequency.
In quantum theory, the elemental unit of light, having both wave and particle behavior. It has motion, but no mass or charge. The photon energy (E) is proportional to the EM wave frequency (v) by the relationship: E=hv; where h is Planck's constant (6.63 x10-34 Joule-sec).
a bundle of interacting electric and magnetic energy which travels through space without significant loss of energy
a discrete amount of e/m energy that is emitted or absorbed by matter and between those events it has no identity
a fundamental particle of electromagnetic energy
a gestalt of wave and particle, sometimes described as a wave packet, which is more than the sum of the two
a group of electromagnetic waves with one frequency and wavelength
a kind of paradox in the context of wave theory and I think that you have not sufficiently concentrate on this point
a light quantum, that is a definite amount of radiation having a frequency within the visible spectrum
a little chunk of light
a little point, an atom absorbing radiation--also not useful in terms of volume
a packet of interacting wavelets with a constant internal action value h in which the polarity of the oscillations is distinguished solely by their being isomeric wave actions of opposed orientations
a packet of radiation energy that has a particular wavelength
a particle of electro-magnetic radiation energy
a particle of radiation having zero rest mass and carries a quantum of energy
a particle of radiation with a discrete amount of energy
a particle that carries electromagnetic radiation (including everything from radio waves to light to gamma radiation)
a perfectly ordinary three-dimensional particle existing in a normal three-space that is one orthogonal turn away from the laboratory three-space
a 'piece' of energy
a quantum concept and quantum mechanics and general relativity are theories which have not been reconciled
a quantum of EM radiation that displays momentum
a quantum of the curvature of space-time--the normal role of the graviton
a quantum of the vibrational energy of the space grid (as in the image above)
a single quantum of action
a small bit of electromagnetic energy sent across space
a small clump of energy
a spherically expanding electromagnetic energy system
a tiny packet of energy that has no measurable mass
a unit excitation of an oscillator, and has energy hf
a unit of electromagnetic radiation such as light or X-rays
a unit of eletromagentic energy with particle and wave behavior)
a unit of energy and so it has mass
a unit of energy in a radiant state, which means that it exudes energy in the form of heat, which means it is attempting to disperse a portion of it's energy, which is a description of a particle in flux
a wave, a wave a wave, which can change its shape and size
Particles of light energy.
minimum discrete quantity of radiant energy
an indivisible quantity of electromagnetic radiation. Its energy content is the product of its frequency () and Planck's constant (h).
discrete "packet" of pure electromagnetic energy. Photons have no mass and travel at the speed of light. The term "photon" was developed to describe energy when it acts like a particle (causing interactions at the molecular or atomic level), rather than a wave. Gamma rays and x-rays are photons.
All matter absorbs and emits electromagnetic radiation in discrete small quantities called photons. The energy of a photon (E) varies withthe frequency of the radiation according to:- where is a constant known as Planck's constant.
Smallest unit of electromagnetic radiation and thus also of light. In his 1905 publication on the photoelectric effect, Einstein introduced light as consisting of light quanta with some properties of particles. There was long resistance against the idea of light particles, mainly by the Danish physicist Niels Bohr. When experiments showed that light can be scattered by electrons, Einstein's hypothesis was considered to be proven right.
a discrete bundle of energy carried by light.
A bundle of light energy.
A quantity of electromagnetic energy. Photons have momentum but no mass or electrical charge.
A discrete packet of electromagnetic energy.
The smallest unit (or "particle") of electromagnetic radiation, carrying one quantum of energy.
a particle of light, having energy hf
a quantum (or packet) of energy emitted in the form of electromagnetic radiation. Gamma rays and x-rays are examples of photons.
The smallest—quantum—unit of visible light or other electromagnetic energy.
The minimum quantity of light energy that can be exchanged is called a light quantum or photon.
A representative of the quantum nature of light. It is considered as the smallest unit of light.
A bit of light---the quantum of electromagnetic energy--- a discrete particle having zero mass, no electric charge, and an indefinitely long lifetime. Polarization: A state in which light-wave vibrations line up in the same direction, like the wave created on a jump rope when jerked sideways or the glare off a lake blocked by polarizing sunglasses.
A packet of energy that can be thought of as a particle of light travelling at the speed of light. A photon of energy E is equivalent to an electromagnetic wave of wavelength λ=hc/E, where h is Planck's constant and c is the speed of light in a vacuum. A to F | G to L | M to R | S to Z
energy emitted in the form of electromagnetic radiation, such as x-rays and gamma rays.
Individual packet of electromagnetic energy that makes up electromagnetic radiation.
a quantum unit of electromagnetic energy.
A 'packet' of energy with no mass, which travels at the speed of light. Photons range from very low energies [such as infrared and visible light], moderate energies [ultraviolet and X-rays] to high energy [gamma].
Photon is an elementary particle of zero mass and spin 1/2. The photon is involved in electromagnetic interactions and is the quantum of electromagnetic radiation. The photon may also be regarded as a unit of energy equal to E = h∙ν where is Planck constant and ν is the frequency of the radiation.
A single quantum of radiant energy.
FOE-ton A packet of light energy. 111, 147
A particle with no mass or electrical charge. Photons are the carriers of the electromagnetic force.
Light behaves as a wave in some circumstances and as an energetic particle in others. A particle of light is called a photon.
A particle of light that acts as an individual unit of energy.
a particle with zero rest mass consisting of a quantum of electromagnetic radiation, which travels at the speed of light
an elementary particle composing light and other forms of electromagnetic radiation, sometimes called light quantum.
A particle of light or other electromagnetic radiation.
The carrier particle of electromagnetic interactions.
A photon is a particle of light.
A quantum of electromagnetic radiation, a unit of light. Light can be viewed as a series of photons.
a unit of electromagnetic energy associated with a specific wavelength.
The elementary quantity of radiant energy.
a quantum or packet of electromagnetic radiation, usually considered as an elementary particle that is its own antiparticle and that has zero rest mass and charge and a spin of one
The photon carries the electromagnetic force between electrically charged particles. It is what makes up light if the frequency is in the visible spectrum.
A discrete portion of an electromagnetic wave. The energy of a photon is given by E = hν, where ν is the frequency of the radiation.
The elementary particle of electromagnetic energy; light.(Basic Science/Radiography/characterradiation.htm)(Course Material/Radiography/Physics/nature.htm)
A discrete unit of electromagnetic energy.
An Elementary Particle which carries the energy of light. The photon is a Boson, and has no mass. It always moves at the Speed of Light.
a massless particle of electromagnetic energy (light).
The carrier of a quantum of electromagnetic energy. Photons have an effective momentum but no mass or electric charge.
A massless elementary particle that is the carrier of radiant energy (as light or x rays).
A unit or "particle" of electromagnetic energy, or light.
An elementary particle that carries electromagnetic force.
A quantum or packet of energy that is a basic part of all electromagnetic waves.
The ultimate unit (a quantum) of light energy. http://www.everythingbio.com/glos/definition.php?word=photon
1. The smallest particle of light energy. 2. Light thought of as tiny, massless bundles of radiation energy.
The elementary package or quantum of energy in which light (or other EM radiation) is emitted and absorbed. The energy of a photon can be calculated using the Planck-Einstein formula, E = hf.
The elemental unit of light, having wave and particle behavior. It has motion, but no charge or mass.
The quantum of electromagnetic radiation. For radiation of frequency , the quantum of energy is E=hf.
A packet of light or electromagnetic radiation; also called quantum of light
A discrete quantity of electromagnetic energy. Short wavelength (high frequency) photons carry more energy than long wavelength (low frequency) photons. See Electromagnetic Radiation.
Elementary particle which is equivalent to the energy of an electromagnetic wave.
The smallest 'unit' of electromagnetic radiation. The energy of a photon is a function of its frequency and can be calculated from the expression E = hf where h is Planck's Constant (= 6.626 x 10-34 Js)
A quantity of light. For particle applications, this is usually used in conjunction with fluorescent particles.
Massless quantum of electromagnetic radiation or light energy.
Units or ‘packets’ of electromagnetic radiation.
colloquially, a "particle of light." Although light spreads as an electromagnetic wave, it can be created or absorbed only in discrete amounts of energy, known as photons. The energy of photons increases, the shorter the wavelength--smallest for radio waves, larger for visible light, largest for x-rays and gamma rays.
Light particles, compound of tiny elementary particles, electromagnetic radiation. The measuring unit of photons is light quanta.
a particle of light. A photon is a packet of energy.
A quantum or discrete package of Electromagnetic Radiation.
a quantized unit of electromagnetic radiation
The quantum of electromagnetic energy, generally regarded as a discrete particle having zero mass, no electric charge, and an indefinitely long lifetime. See Electromagnetic Spectrum.
A particle of light. Measure in ‘quantaâ€(tm) of light needed to initiate an electron movement in a detector.
A discrete amount of light energy; the energy of a photon is related to the frequency of the light be the relation E = hf, where is Planck's constant.
A discreet amount of electromágnetica energy. The short photons of the wavelength (of high frequency) take more energy than of length photons of the wavelength (low frequency). See The Electromágnetica Radiation.
A quantum (energy packet) of electromagnetic radiation; the elementary particle of photon radiation therapy. X rays and gamma rays are photon radiation.
A quantum of radiant energy moving with the velocity of light and an energy proportional to its frequency.
a distinct ``chunk'' or particle of electromagnetic radiation.
A discrete quantity of energy that can be thought of as a packet of electromagnetic radiation traveling at the speed of light (300Mm/sec).
The smallest unit of light energy capable of existing independently.
The actual (physical) particle unit of light, as the electron is of electric charge and the atom and molecule are of matter. Light has both wave properties and particle properties. Violet light has relatively short wavelength and higher energy in its photons; red light has longer wavelength, lower-energy photons. The wavelength and/or energy spectrum of the sun extends in both directions beyond the visible range of light, of course, and the silicon module solar cell can capture some energy in both of these invisible zones. Photons not captured by the cell are either reflected or converted to heat in the solar array.
A discrete unit of radiant energy.
A single quantum of electromagnetic energy having momentum hf/c and energy hf. (h is Planck's constant, f is the frequency of the wave and c is the speed of light).
The basic unit (quantum) of electromagnetic radiation. Light waves, gamma rays, x-rays, and so on consist of photons. Photons are discrete concentrations of energy that seem to have no rest mass and move at the speed of light. Their nature can be described only in mathematical terms. Photons are emitted when electrons move from one energy state to another, as in an excited atom. SEE ALSO gamma decay; radiation.
A unit or particle of radiant or light energy. Photons have no electric charge. Gamma and X-rays may be referred to as photons.
The photon is a light quantum, the smallest energy unit of light. The term was coined by Albert Einstein. The elementary particle photon moves at the speed of light, and when it encounters a solar cell, its energy is directly converted to electricity. Hence the term ‘photovoltaics’ .
Discrete portion of electromagnetic energy. A small packet of light.
The massless particle that, according to the quantum theory of radiation, carries the smallest discrete amount of electromagnetic energy ν, where is Planck's constant and ν is the frequency of the associated electromagnetic wave. Although the photon has no mass it does have ( linear) momentum , where is the free- space speed of light, and intrinsic angular momentum (spin) /2π, as evidenced by radiation pressure and radiation torque.
A particle of light. A quantum of electromagnetic energy moving at the speed of light.
particle of light energy. It is the smallest quantity of radiant energy that can be transmitted between two systems.
A discrete packet of light energy that travels extremely fast (3 times 105 km/sec, in vacuum).
A quantum of electromagnetic energy. A particle of light.
A quantum of electromagnetic energy. Carries an amount of energy that depends inversely on its wavelength.
A tiny package of light energy.
Photon was a live action series based on the infrared tag game popular in the 1980s. The series took place on Earth and in space on various worlds and involved a young human teen named Christopher Jarvis who is a champion player of Photon. He receives a mysterious message one day while playing and is transported to the ship of Mother One, the leader of the Federation of Light a galactic amalgam of beings dedicated to playing Photon and the power of good over evil.
Photon is a 6 episode anime OVA series by Masaki Kajishima. It has a very high amount of fanservice.
a deflectionless raft on space which cannot be tilted
a single partic
Photon was a live action television show in the mid 1980s, which was tied in to the lasertag arenas and home game.
a localized event
a neutral event composed of two equally charged but opposite events
a person without a body