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What does Wien's displacement law say about the peak wavelength of the radiation emitted by a blackbody?
It is independent of the body's temperature
It decreases with decreasing temperature
It increases with increasing temperature
It decreases with increasing temperature
Answer
Wien's displacement law states that the peak wavelength of the radiation emitted by a blackbody is inversely proportional to its absolute temperature. This means that as the temperature of a blackbody increases, the peak wavelength of its radiation decreases. This is because the higher the temperature of a blackbody, the more energy it emits. The more energy a blackbody emits, the shorter the wavelength of its radiation.
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