The range of frequencies and wavelengths that electromagnetic radiation can occupy. See also: frequency, wavelength, electromagnetic radiation, Advanced Topics

The complete range of frequencies (or wavelengths) of electromagnetic radiation. More information on electromagnetic radiation and the electromagnetic spectrum can be found at the following sites: Measuring the electromagnetic spectrum (High-Energy Astrophysics Learning Center, Goddard Space Flight Center, USA) More about the electromagnetic spectrum (High-Energy Astrophysics Learning Center, Goddard Space Flight Center, USA) Light and colour: The nature of electromagnetic radiation (Florida State University, USA)

the distribution of frequencies of radiation

1. The entire range of electromagnetic radiation ordered according to their frequencies and energy. 2. In the order of decreasing frequency, cosmic rays, gamma rays, x-rays, ultraviolet radiation, visible light, infrared radiation, microwaves, and radio waves.

The entire array of photon energy levels, which includes radio waves, microwaves, infrared radiation, ultraviolet light, x-rays, gamma rays, and visible light.

The entire spectrum of electromagnetic waves, taken as a continuum of all kinds of electric, magnetic and visible radiation.

the range of wavelengths or frequencies of electromagnetic radiation including gamma rays, visible light, and the longest radio waves.

The system that classifies, according to wavelength, all energy (from short cosmic to long radio) that moves, harmonically, at the constant velocity of light.

The spectrum containing all the different kinds of electromagnetic waves, ranging in wavelength and frequency.

The complete range of electromagnetic radiation, from radio waves to gamma rays, including the visible spectrum. All types of electromagnetic radiation are basically the same phenomenon, differing only by wavelength, and all move at the speed of light.

Range of electromagnetic waves or radiation that is the result of energy emitted by hot objects (e.g., the sun).

The range of frequencies of radiation having electrical and magnetic characteristics. The spectrum includes radio waves at one end with the longest wave lengths, then infra red, visible light, ultra violet, x-rays, gamma rays and finally cosmic rays with the shortest wavelengths.

The ordered array of wavelengths which extend from very short cosmic energies, through the visible color region, and finally to very long radio energies.

The complete range of frequencies of electromagnetic waves from the lowest to the highest, including radio infrared, visible light, ultraviolet, X-ray, gamma ray, and cosmic ray waves.

The orderly arrangement of electromagnetic radiation. The arrangement is based on wavelength, or energy level. The longer the wavelength the lower the energy level. Starting with the longest wavelength, the order is radio wave, microwave, infrared, visible light, ultraviolet, X-ray, and gamma-ray.

a continuum of electromagnetic waves or energies that include radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma rays.

The distribution of energy emitted by a radiant source, arranged in order of wavelength or frequency. Includes gamma-ray, X-ray, ultraviolet, visual, infrared, through radio regions.

The massive band of electromagnetic waves that pass through the air in different sizes, as measured by wavelength. Different wavelengths have different properties, but most are invisible, and some completely undetectable, to human beings. Only wavelengths that are between 380 and 720 nanometers in size are visible, producing light. Invisible waves outside the visible spectrum include gamma rays, x-rays, microwaves and radio waves.

The ordered array of all known radiation beginning with the shortest wavelength of cosmic rays, through gamma rays, x-rays, ultraviolet, visible, and infrared radiation, as well as the high frequency microwaves and all other radio waves.

The complete range of frequencies of electromagnetic waves from the lowest to the highest (from largest to smallest wavelengths), including, in order, radio, infared, visible light, ultraviolet, X-ray, and gamma ray waves. from Webster's New World Dictionary

the spectrum of wavelength, frequency and energy of electromagnetic radiations, ranging in wavelength of x-rays to radio waves.

This is a continuous band of electromagnetic radiation arranged in the order of decreasing photon energy, decreasing frequency or increasing wavelength. Each part is named according to its origin and frequency/wavelength range. Light energy is the most familiar part of the spectrum and it is often referred to as the 'family of light'. Some parts of the e.m. spectrum can be directly detected by humans, others cannot. See the table below: indicates that the rays are harmful because they are of high enough energy to be ionising radiation.

The complete range of electromagnetic radiations, from very short-wavelength (high-frequency) gamma-rays, through X-rays and ultraviolet light to the small range of visible light, and further to infrared radiation, microwave, and the comparatively long-wavelength low-frequency radio waves.

The electromagnetic spectrum is the complete range of wavelengths of the electromagnetic radiation.

All the different colors of light, which is also called electromagnetic radiation. Only a small portion of the spectrum is visible. Names are given to broad energy bands within this spectrum: radio, infrared, visible, ultraviolet, X-rays and gamma-rays. Gamma-rays are the most energetic form of light.

The entire range of electromagnetic radiation. The spectrum usually is divided into seven sections. From the longest wavelengths to the shortest: radio, microwave, infrared, visible, ultraviolet, x-ray, and gamma ray radiation.

The range of frequencies and wavelengths emitted by atomic systems. The total spectrum includes radiowaves as well as short cosmic rays. Wavelengths cover a range from 1 hz to perhaps as high as 1020 hz.

the entire frequency range of electromagnetic waves

The continuous spectrum of light in the following order from highest frequency to lowest frequency: Gamma rays X-rays UV rays Visible light Infrared light Microwaves Radio waves - The electromagnetic spectrum is said to be continuous, as it is thorough from beginning to end. there are no holes. The various "bands" of light do not change directly, they instead gradually fade into the different type of light.

the ordered array of known electromagnetic energies, extending from the shortest cosmic ray, through gamma rays, x-rays, ultraviolet radiation, and including microwave and all other wavelengths of radio energy.

Complete range of wavelengths which light can have. These include infared, ultraviolet, and all other types of electromagnetic radiation, as well as visible light.

continuous sequence of electomagnetic energy arranged according to wavelength or frequency

range of wavelengths or frequencies of electromagnetic radiation ranging from cosmic and gamma rays (high energy/short wavelength) to radio waves (low energy/long wavelength). The UV part of the EM spectrum has wavelengths extending from about 180-350 nm, the visible from about 350 (violet)-700 (red) nm and the IR from about 700 to 3000 nm.

All wavelengths of electromagnetic energy, including x-rays, ultraviolet rays, visible light, infrared light, and radio waves.

A breakdown of electromagnetic fields according to their frequency and wavelength. The spectrum is divided into extra low-frequency (ELF), very low frequency (VLF), radio-frequency (RF), microwave, visible light, and ionizing radiation (X-rays and gamma rays).

The total range of wavelengths or frequencies of electromagnetic radiation, extending from the longest radio waves to the shortest-known cosmic rays.

e-LEK-tro-mag-NET-ik SPECK-trum A spectrum of naturally occurring radiation. 147

The electromagnetic spectrum (or EM spectrum) is the range of all possible wavelengths of electromagnetic waves, from long wavelength radio waves to short wavelength gamma rays. Electromagnetic Waves

(DOD) The range of frequencies of electromagnetic radiation from zero to infinity. It is divided into 26 alphabetically designated bands.

Radiation of various wavelengths emitted in the form of waves carrying rapidly varying electric and magnetic fields (light is an example of a portion of the spectrum).

the spectrum encompassing the entire range of electromagnetic radiation (light)

This contains all the different types of light that we can physically detect ranging from gamma rays to radio waves. The Electromagnetic Spectrum distinguishes between the different types of waves by their wavelengths. To find out more about the Electromagnetic Spectrum, go to: http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html.

A continuous range of frequencies of electromagnetic radiation (i.e., oscillating electrical and magnetic energy which can travel through space). Within the spectrum, waves have some specified common characteristics; the TV broadcast spectrum, for instance, ranges from 45 to 890 MHz. (see Frequency)

A continuous range of electromagnetic signals, from the lowest frequencies (longest wavelengths) to the highest frequencies (shortest wavelengths).

The entire range of electromagnetic waves, named in order of increasing frequency or energy, ranges from radio waves, to microwave, to infrared, to visible or optical, to ultraviolet, to X rays, to gamma rays. [More Info

A continuum of electric and magnetic radiation encompassing all wavelengths.

The entire range of electromagnetic radiation (light) that objects emit, reflect, or transmit. In order of increasing wavelength (decreasing frequency and energy), the spectrum ranges from gamma rays through X-rays, ultraviolet light, visible light, infrared radiation, and microwaves to radio waves.

the scientific name for the full range of wave radiation, from cosmic rays through UV, visible light, infrared, on to radio waves and beyond. See Electromagnetic Spectrum Figure.

The entire range of wavelengths of electromagnetic radiation extending from gamma rays to radio waves.

the full range of frequencies, from radio waves to gamma rays, that characterizes light.

The entire range of radiant energies or wave frequencies from the longest to the shortest wavelengths--the categorization of solar radiation. Satellite sensors collect this energy, but what the detectors capture is only a small portion of the entire electromagnetic spectrum. The spectrum usually is divided into seven sections: radio, microwave, infrared, visible, ultraviolet, x-ray, and gamma-ray radiation. See diagram above.

The range of electromagnetic radiation from the shortest cosmic rays, through gamma rays, x rays, ultraviolet radiation, visible light, infrared radiation, microwaves and all longer radio wavelengths.

the ordered series of all known types of electromagnetic radiation, arranged by wavelength ranging from the short cosmic rays through gamma rays, X-rays, ultraviolet radiation, visible radiation, infrared radiation, microwaves, to the long wavelengths of radio energy

is a continuum of all kinds of electric, magnetic, and visible radiation. [insert diagram of spectrum with wavelengths and sections

the entire energy range of electromagnetic radiation specified by frequency, wavelength, or photon energy. The low end of the spectrum is infrared radiation (heat), and passes through the colors of visual light from red through violet, through ultraviolet radiation, x-rays, and gamma rays. Radio and television are transmitted on specific electromagnetic frequencies.

Visible light that fits between ultraviolet and infrared radiation in the spectrum.

Entire range of wavelengths or frequencies of electromagnetic radiation extending from gamma rays to the longest radio wave including visible light. See also Radio Frequency.

The whole array or family of electromagnetic waves, from radio to gamma rays.

the wide arrange of electromagnetic radiation ordered by wavelength

The entire range of electromagnetic radiation - all of its wavelengths, including those of visible light.

Radiant energy over a broad range of wavelengths.

The electromagnetic spectrum is full range of electromagnetic radiation, including: gamma rays, X-rays, UV rays, visible light, infrared, microwaves, and radio waves (in order of decreasing energy and increasing wavelength).

the complete range of radiation given off by the sun, and includes heat, light, x-rays, radio waves and other kinds of energy.

See "Spectra". Also see graphic of spectrum.

The range of frequencies over which electromagnetic radiations are propagated. The lowest frequencies are radio waves; increases of frequency produce infrared radiation, light, ultraviolet radiation, X-rays and gamma rays. See also Electromagnetic radiation; Frequency; Light; UV radiation; Visible spectrum.

The different types of electromagnetic radiation, arranged in order of frequency or wavelength. Waves

A continuum encompassing all the wavelengths of electromagnetic radiation.

The full range of electromagnetic radiation in order of wavelength from longest to shortest, or frequency from lowest to highest. In order, the types of radiation that make up the electromagnetic spectrum include radio, microwave, infrared, visible, ultraviolet, x-ray, and gamma-ray. Our eyes are only sensitive to the sliver of the electromagnetic spectrum we call visible light. Astronomers use instruments that can observe as much of the electromagnetic spectrum as possible to learn about the nature and history of the universe. See also light spectrum

the entire continuum of all kinds of electric, magnetic, and visible radiation; electromagnetic waves are characterized by their frequency and/or wavelength associated with that frequency; in order of increasing frequency--and decreasing wavelength--the spectrum consists of the following bands: low/radio frequencies--0.001 Hz to about 300 MHz (i.e., 300,000,000 Hz) microwave--from about 300 MHz to 300 GHz (i.e., 300,000,000,000 Hz) infrared light--from about 300 GHz to 375 THz (i.e., 375,000,000,000,000 Hz) visible light--from 375 THz to 750 THz ultraviolet light--from about 750 THz to 300 PHz (i.e., 300,000,000,000,000,000 Hz) x-rays and gamma rays--expressed in EHz

The array of electromagnetic radiation, arranged in order of wavelength, from long-wavelength radio emissions to short-wavelength gamma rays. Also refers to a narrower band of wavelengths, called the visible spectrum, as when light dispersed by a prism shows its component colors. Spectra are often striped with emission or absorption lines, which can be examined to reveal the composition and motion of the light source.

forms of electromagnetic radiation that include radio waves, microwaves, infrared radiation, visible light, ultraviolet rays, X-rays, and gamma rays

the range of electromagnetic wave - wavelengths. There is no theoretical limit on the range of wavelengths in the electromagnetic spectrum.

A continuum of electric and magnetic radiation that can be characterized by wavelength or frequency. Visible light encompasses a small part of the electromagnetic spectrum in the region from about 380 nanometers (violet) to 770 nanometers (red) by wavelength.

The entire range of radiation extending in frequency from 10 23 cycles per second (or Hertz) to zero Hertz.

The range of all wavelengths of electromagnetic radiation.

The full range of electromagnetic radiation in order of wavelength from longest to shortest, or frequency from lowest to highest. In terms of visible light, a light spectrum runs from red to blue. Astronomers scan as much of the electromagnetic spectrum as possible to learn about the nature of the universe and how it came to be. See also: spectrum

The range of energy which contains parts or "bands" such as the visible, infrared, ultraviolet, microwave (radar), gamma ray, x-ray, radio, and which travels at the speed of light. Different parts of the electromagnetic spectrum have different wavelengths and frequencies. (Related words: spectrum, radiation, spectral band)

Full range from radio waves to visible light to X-rays and cosmic rays (p.132-134).

The entire range of radiant energy, including for example, X-ray, visible light, infrared radiation, radio waves, etc.

All electromagnetic radiations displayed as a continuum in order of increasing frequency or decreasing wavelength.

A plot of the range of wavelengths and types of electromagnetic radiation found to exist from subsonic waves to cosmic rays.

The complete range of stored or propagating electric and magnetic field energies. The lower part of the spectrum is known as non-ionising energy and includes power line frequencies, radio frequencies, infrared, visible light and ultra violet. The upper part of the spectrum is known as ionising energy and includes x-rays and gamma rays.

The entire range of all the various kinds of radiation; light (or the visible spectrum) comprises just one small segment of this much broader spectrum.

The range of frequencies of electromagnetic radiation from zero to infinity. Note: The electromagnetic spectrum was, by custom and practice, formerly divided into 26 alphabetically designated bands. This usage still prevails to some degree. However, the ITU formally recognizes 12 bands, from 30 Hz to 3000 GHz. New bands, from 3 THz to 3000 THz, are under active consideration for recognition.

The ordered sequence of all known electromagnetic radiations, extending from the shortest cosmic rays through gamma rays, x-rays, ultraviolet radiation, visible radiation, infrared radiation, and including microwave and all other radio wavelengths. The division of this continuum of wavelengths (or frequencies) into a number of named subportions is rather arbitrary and, with one or two exceptions, the boundaries of the several subportions are only vaguely defined. Nevertheless, to each of the commonly identified subportions there correspond characteristic types of physical systems capable of emitting radiation at those wavelengths. Thus, gamma rays are emitted from the nuclei of atoms as they undergo any of several types of nuclear rearrangements; visible light is emitted, for the most part, by atoms with planetary electrons undergoing transitions to lower energy states; infrared radiation is associated with characteristic molecular vibrations and rotations; and radio waves, broadly speaking, are emitted by virtue of the accelerations of free electrons in metals as, for example, the moving electrons in a radio antenna wire.

The ordered array known as electromagnetic radiation extending from the shortest cosmic rays, through gamma rays, X-rays, ultraviolet radiation, visible radiation, infrared radiation, and including microwave and all other wavelengths of radio energy.

Different kinds of electromagnetic waves can be classified by their wavelenghts. They are classified into sections called bands. The electromagnetic spectrum is the collection of these bands. The following types of waves make up the electromagnetic spectrum: gamma rays, x-rays, ultraviolet rays, visible light, infrared waves, and radio waves. The length of these waves ranges from 10-12 metres to 102 metres long; this is known as the wavelength. Click here for a picture of the electromagnetic spectrum.

The name given to the continuous variation of wavelength for electromagnetic waves, much as gamma rays, X-rays, ultraviolet, visible, infrared, microwaves and radio waves.

The entire range of possible frequencies, from DC to gamma rays and beyond. The spectrum is measured in terms of wavelength or frequency, where wavelength in meters = 3 × 10**8/frequency in hertz. AM radio is at the low end of the spectrum, from 500 kHz to 1.6 MHz; FM radio is around 100 MHz, cell phones at 800 MHz, radar from 2 to 14 GHz, and visible light around 10**6 GHz. The electromagnetic spectrum.

The electromagnetic waves that can propagate through free space that are created when electrons move. It ranges from extremely low-frequency radio waves of 30 Hz—with a wavelength of nearly the earth's diameter—to high-frequency cosmic rays of more than 10 million trillion Hz—with wavelengths smaller than the nucleus of an atom. The electromagnetic spectrum is depicted as a logarithmic progression: the scale increases by multiples of 10, so that the higher regions encompass a greater span of frequencies than the lower regions. The greater the span of frequencies, the greater the bandwidth of the media operating over that portion of the electromagnetic spectrum.

The continuous distribution of all electromagnetic radiation with wavelengths ranging from approximately 10−15 to 106 meters, which includes gamma rays, X rays, ultraviolet, visible light, infrared, microwaves, and radio waves.

The entire range of wavelengths of electromagnetic radiation, including radio waves, microwaves, infrared light, visible light, ultraviolet light, X-rays, and gamma rays.

The collection of all electromagnetic energy arranged according to frequency and wavelength.

List or diagram showing the range of electromagnetic radiation.

The range of frequencies of electromagnetic radiation from zero to infinity. Click to enlarge image. ELED: See edge-emitting diode.

The band of electromagnetic radiation with components that are separated into their relative wave lengths. The portion of the spectrum that the human eye can detect is called visible light, between the longer infrared waves and the shorter ultraviolet waves. The various types of energy comprising the spectrum are (from longest to shortest) radio, infrared, visible, ultraviolet, x-rays, gamma rays, and cosmic rays.

The whole range of radiation that travels through a vacuum with a speed of about 3 × 108 meters per second.

The electromagnetic (EM) spectrum is the range of all possible electromagnetic radiation. Also, the "electromagnetic spectrum" (usually just spectrum) of an object is the frequency range of electromagnetic radiation that it emits, reflects, or transmits. The electromagnetic spectrum, shown in the chart, extends from just below the frequencies used for modern radio (at the long-wavelength end) to gamma radiation (at the short-wavelength end), covering wavelengths from thousands of kilometres down to fractions of the size of an atom.