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Emissivity values range from 0 to 1. A value of 0 indicates a perfect reflector, meaning the surface emits no thermal radiation, while a value of 1 signifies a perfect blackbody, which emits the maximum possible thermal radiation. Most real-world surfaces have emissivity values between these extremes, typically ranging from 0.1 to 0.95, depending on their material and surface characteristics.

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2mo ago

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