Ritz combination principle
[ rits ]
/ rɪts /
noun Physics.
the principle that the frequencies of lines in atomic spectra can be represented as differences of a smaller number of terms, all characteristic of the emitting system, interpreted in quantum theory as the emission of exactly one photon in a transition between energy levels.
Also called
combination principle.
Origin of Ritz combination principle
after Walther
Ritz (1878–1909), Swiss physicist, who formulated it