electromagnetic spectrum

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electromagnetic spectrum

the range of frequencies and wavelengths associated with radiant energy.

e·lec·tro·mag·net·ic ra·di·a·tion

, electromagnetic spectrum (ĕ-lek'trō-mag-net'ik rā'dē-ā'shŭn, spek'trŭm)
Wavelike energy propagated through matter or space; varies widely in wavelength, frequency, photon energy, and properties; may be natural or artificial and includes radiowaves, microwaves, heat waves, visible light, ultraviolet light, x-rays, gamma rays, and cosmic radiation.

electromagnetic spectrum

The continuum of radiation, varying in frequency, and, correspondingly, wavelength, that includes, in order of decreasing frequency, cosmic ray photons, gamma rays, X rays, ultraviolet radiation, visible light, infrared radiation, microwaves, radio waves and heat.
Electromagnetic spectrumclick for a larger image
Fig. 142 Electromagnetic spectrum . The wavelength ranges of the electromagnetic spectrum.

electromagnetic spectrum

the entire range of wavelengths of electromagnetic radiation, most of which are not detectable by the human eye except in the visible spectrum from about 400–700 nm wavelength. Wavelengths shorter than the visible spectrum contain large quantities of energy which can be harmful to living material. See Fig. 141 . See X-RAY, GAMMA RADIATION, ULTRAVIOLET LIGHT.

electromagnetic spectrum (·lekˈ·trō·mag·neˑ·tik spekˑ·trm),

n the entire range of electromagnetic radiation that extends from the longest (radio waves) to the shortest (gamma radiation) wavelengths.

e·lec·tro·mag·net·ic ra·di·a·tion

, electromagnetic spectrum (ĕ-lek'trō-mag-net'ik rā'dē-ā'shŭn, spek'trŭm)
Wavelike energy propagated through matter or space; varies widely in wavelength, frequency, photon energy, and properties; may be natural or artificial and includes x-rays, gamma rays, and other forms.
References in periodicals archive ?
H] = 220 ppm for a keto carbonyl confirming the presence of carbonyl group identified in the IR spectrum of compound (4).
An IR spectrum of this material was obtained by spreading a thin layer on a KCI plate (Fig.
The signal is collected all at once and a Fourier trans form is performed to produce a conventional IR spectrum.
The IR spectrum reveals the presence of polytetrafluoroethylene, also known as Teflon.
Sage also is developing an entirely new set of night-vision equipment based on the short wave IR spectrum.
An IR spectrum of a nylon-rayon mixture was used as a search query against an IR spectral database.
Because the endoscopic samples are small and it is hard to obtain a high-quality IR spectrum, a modified attenuated total reflectance (ATR) accessory was linked to a WQD500 FT-IR spectrometer (Beijing No.
In sample preparations for recording the FT IR spectrum, the samples of paper or prints were weighted, from 1,0 mg and 150,0 mg KBr in powder form.
FTIR detection in used in areas where the complementary information from an IR spectrum is necessary, The largest market for our turnkey IRD detector is the forensics market where complementary identification of illicit drugs in necessary, It is also an important analytical tool for competitive formulation analysis, identification and characterization of organic synthesis products and by-products, regulatory compliance, drug metabolic studies, environmental analysis, flavors and fragrances, food product analysis, and petroleum and fuels
The IR spectrum is commonly called the "fingerprint" region because in it most organic molecules exhibit a large number of well-defined peaks.