MeSH definition : The theory that the radiation and absorption of energy take place in definite quantities
called quanta (E) which vary in size and are defined by the equation E hv in which
h is Planck's constant and v is the frequency of the radiation.;
The theory that the radiation and absorption of energy take place in definite quantities
called quanta (E) which vary in size and are defined by the equation E hv in which
h is Planck's constant and v is the frequency of the radiation.