Planck constant
The Planck constant (denoted ) is a
physical constant that is used to describe the sizes of
quanta. It plays a central role in the theory of
quantum mechanics, and is named after
Max Planck, one of the founders of quantum theory. A closely-related quantity is the reduced Planck constant (also known as Dirac's constant and denoted , pronounced "h-bar"). The Planck constant is also used in measuring energy emitted as
photons, such as in the equation , where E is energy, h is Planck's constant, and (
Greek letter nu) is frequency.
See more at Wikipedia.org...
Planck's constant
Noun
1. the constant of proportionality relating the energy of a photon to its frequency; approximately 6.626 x 10\-34 joule-second
(synonym) h
(hypernym) factor of proportionality, constant of proportionality
Planck's constant
The constant of proportionality, represented by the symbol h, that relates the energy E of a
photon with the
frequency of the associated wave through the relation E = h, where h = 6.626 × 10-34 joule•second.
Planck's constant
(h) A proportionality constant that relates the energy carried by a
photon to its
frequency . Planck's constant has a value of 6.6262 × 10-34 J s.
Free Download Now!
