Assertion: watt | /r/HasProperty | w·sr−1·hz−1
Facets:
Source sentences:
text: The SI unit of radiant intensity is the watt per steradian (W/sr), while that of spectral intensity in frequency is the watt per steradian per hertz (W·sr−1·Hz−1) and that of spectral intensity in wavelength is the watt per steradian per metre (