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<!--Add to article: it is wavelength independent, varies dynamically in time (an analogy is made to weather in t

...and [[physics]] to refer to phenomena causing an increase in the observed wavelength of electromagnetic radiation or an apparent decrease in the observed freque

...enient length standard at atomic scales. {{cite journal |title=&gamma;-ray wavelength as standard for atomic scales |url=http://hasyweb.desy.de/science/annual_re ...A667|pages=pp. 667 ''ff'' |chapter=Chapter 15: Surface profilers, multiple wavelength, and white light interferometry |author=J Schmit, K Creath, and JC Wyant |i

..., typically within the [[infrared light|infrared]] through [[ultraviolet]] wavelength range, and compare it to spectral signatures of known objects

===Planck's Law: Wavelength=== Formulated in terms of wavelength:

The property of reflecting light of a particular wavelength distinguished by the qualities of hue (as red, brown, yellow, etc.), lightn

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...<math>\frac{W}{m^2}</math>]. Irradiance typically varies as a function of wavelength.

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...t have an apparent wave behaviour—the greater the momentum the smaller the wavelength.</ref> of the wave behaviour of matter by beaming electrons at varying leve

...s always an error margin equal to the wavelength of the photon. Though the wavelength can be made shorter in order to reduce the error margin, this also disturbs ...ile we know where the pulse is (position), we have little knowledge of its wavelength (momentum).

*2006: ''[[Wavelength (1967 film)|Wavelength]]; [[Les bons débarras]]; [[Isabel (film)|Isabel]]''

...ansmissivity of 100%. Transmissivity normally varies as a function of both wavelength and incident angle.

...warm surface radiates energy back into space in the form of infrared (long wavelength) light. Much of the infrared energy radiated by the surface does not disapp ...velength. (By Kirchoff's law, absorptivity equals emissivity for any given wavelength.) Whether the temperature rises or falls depends on the balance between the

...''' (29 November 1803 – 17 March 1853) is known for relating the change in wavelength with movement, now known as the [[Doppler effect]] or [[Doppler shift]], wh

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...within electrons, and the properties that cause light, of a charateristic wavelength, to be absorbed in moving an electron to a more energetic level, or to be e ...bsorption spectrometry: neasures the absorption, by the sample, of a given wavelength(s) of light

...has a reflectivity of 100%. Reflectivity normally varies as a function of wavelength.