Nevertheless, in a manner of speaking, this formula means that the shape of the spectral distribution is independent of temperature, according to Wien's displacement law, as detailed below in the sub-section Properties.
12.
The value of the Draper point can be calculated using Wien's displacement law : the peak frequency \ nu _ \ text { peak } ( in hertz ) emitted by a blackbody relates to temperature as follows:
13.
If supplemented by the classically unjustifiable assumption that for some reason the radiation is finite, classical thermodynamics provides an account of some aspects of the Planck distribution, such as the Stefan Boltzmann law, and the Wien displacement law.
14.
The form of Wien's displacement law in terms of maximum radiance per unit " frequency " is derived using similar methods, but starting with the form of Planck's law expressed in those terms rather than wavelength.
15.
Wien's displacement law, and the fact that the frequency is inversely proportional to the wavelength, indicates that the peak frequency " f max " is proportional to the absolute temperature " T " of the black body.
16.
However, a red dwarf such as Gliese 581 radiates primarily in the nm ( estimated using Wien's displacement law, which assumes the star radiates as a black body ), so such an estimate will underestimate the star's total luminosity.
17.
Objects at room temperature will radiation concentrated mostly in the 8 to 25 �m band, but this is not distinct from the emission of visible light by incandescent objects and ultraviolet by even hotter objects ( see black body and Wien's displacement law ).
18.
In 1901, Rutherford and Frederick Soddy showed that alpha and beta radioactivity involves the radioactive displacement law, which states that beta ( i . e ., ) emission from one element produces another element one place to the right in the periodic table, while alpha emission produces an element two places to the left.
19.
:( ec ) There are a number of ways of measuring the outside temperature of the sun such as using Wien's displacement law to derive the temperature from the peak in the emitted spectrum or using Stefan's law to derive the temperature from the talk ) 20 : 41, 27 April 2009 ( UTC)
20.
Measurement of the spectrum of electromagnetic radiation from an ideal three-dimensional black body can provide an accurate temperature measurement because the frequency of maximum spectral radiance of black-body radiation is directly proportional to the temperature of the black body; this is known as Wien's displacement law and has a theoretical explanation in Planck's law and the Bose Einstein law.
