“Lambert’s laws”的概念、定义、翻译、参考文献-科学参考

Lambert’s laws

Physics

单词	Lambert’s laws
释义	Lambert’s laws Physics (1) The illuminance of a surface illuminated by light falling on it perpendicularly from a point source is inversely proportional to the square of the distance between the surface and the source. (2) If the rays make an angle θ‎ with the normal to the surface, the illuminance is proportional to cosθ‎. (3) (Also called Bouquer’s law) The luminous intensity (I) of light (or other electromagnetic radiation) decreases exponentially with the distance d when it enters an absorbing medium, i.e. $I = I_{0} exp (- α d)$ where I₀ is the intensity of the radiation that enters the medium and α‎ is its linear absorption coefficient. These laws were first stated (for light) by Johann Lambert.
随便看	null measure null method null point null-point detector null sequence null set null space Nullstellensatz null string null vector number number cruncher number density number evolution number field number line number needed to treat number of poles number of transfer units Numberphile numbers, law of large number system number systems number theory Numenius of Apamea (2nd)