Relation To Planck's Law
The Wien approximation was originally proposed as a description of the complete spectrum of thermal radiation, although it failed to accurately describe long wavelength (low frequency) emission. However, it was soon superseded by Planck's law, developed by Max Planck. Unlike the Wien approximation, Planck's law accurately describes the complete spectrum of thermal radiation. Planck's law may be given as
The Wien approximation may be derived from Planck's law by assuming . When this is true, then
and so Planck's law approximately equals the Wien approximation at high frequencies.
Read more about this topic: Wien Approximation
Famous quotes containing the words relation to, relation and/or law:
“The foregoing generations beheld God and nature face to face; we, through their eyes. Why should not we also enjoy an original relation to the universe? Why should not we have a poetry and philosophy of insight and not of tradition, and a religion by revelation to us, and not the history of theirs?”
—Ralph Waldo Emerson (18031882)
“Among the most valuable but least appreciated experiences parenthood can provide are the opportunities it offers for exploring, reliving, and resolving ones own childhood problems in the context of ones relation to ones child.”
—Bruno Bettelheim (20th century)
“There was that law of life so cruel and so just which demanded that one must grow or else pay more for remaining the same.”
—Norman Mailer (b. 1923)