LAMBERT'S LAW


Meaning of LAMBERT'S LAW in English

noun

Usage: usually capitalized L

Etymology: after J. H. Lambert, its formulator

: either of two laws in physics:

a. : cosine law

b. : the negative logarithm of the transmittance of a layer of substance is proportional to the thickness of the layer, the constant of proportionality for natural logarithms being the absorption coefficient — called also Bouguer's law

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.