Radiant flux
Measure of radiant energy over time / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Radiant power?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
Not to be confused with Radiation flux.
"Spectral power" redirects here. Not to be confused with Spectral power density.
In radiometry, radiant flux or radiant power is the radiant energy emitted, reflected, transmitted, or received per unit time, and spectral flux or spectral power is the radiant flux per unit frequency or wavelength, depending on whether the spectrum is taken as a function of frequency or of wavelength. The SI unit of radiant flux is the watt (W), one joule per second (J/s), while that of spectral flux in frequency is the watt per hertz (W/Hz) and that of spectral flux in wavelength is the watt per metre (W/m)—commonly the watt per nanometre (W/nm).
This article needs additional citations for verification. (December 2009) |