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PotesLuis
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Is the sun a passive or active blackbody?
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The sun is considered an active blackbody. This means that it generates its own energy through nuclear fusion reactions and emits radiation as a result.
A blackbody is an idealized object that absorbs all incoming radiation and emits radiation at all wavelengths.
A blackbody behaves according to Planck's law, which states that the intensity of radiation emitted at a specific wavelength is proportional to the temperature of the object and the wavelength.
The sun is considered an active blackbody because it generates its own energy through nuclear fusion reactions in its core and emits radiation as a result.
The sun's temperature greatly affects its blackbody behavior. As its temperature increases, the sun emits radiation at shorter wavelengths and with higher intensities, following Planck's law.