실험: 스테판-볼츠만 법칙
(115볼트, 50/60헤르츠)
![실험: 스테판-볼츠만 법칙
(115볼트, 50/60헤르츠), 8000692 [UE4050200-115], Intensity of Radiation](/imagelibrary/UE4050200-115/UE4050200-115_01_실험-스테판-볼츠만-법칙-115볼트-5060헤르츠.jpg)
![실험: 스테판-볼츠만 법칙
(115볼트, 50/60헤르츠), 8000692 [UE4050200-115], Intensity of Radiation](/thumblibrary/UE4050200-115/UE4050200-115_01_1200_1200_실험-스테판-볼츠만-법칙-115볼트-5060헤르츠.jpg)
Objective: Verify that intensity of radiation is proportional to the fourth power of the temperature, T4
The way that intensity of radiation from a black body depends on temperature is described by the Stefan-Boltzmann law. Similar dependence on temperature is exhibited by the intensity of radiation from an incandescent lamp with a tungsten filament. In this experiment, a Moll thermopile is used to make a relative measurement which verifies the law. The temperature of the filament can be determined from the way its resistance depends on temperature, which can be determined very accurately using a four-wire method.
