【Daily Question】Theoretical Foundation 2020.12.14
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Multiple-choice question: The question is shown in the image ( ). Answer: D. Hint: An additional reward will be given to those who can explain the solution process; the answer can be submitted there
The correct answer is D. Option A: Objects with a temperature higher than 0 K all experience radiation heat transfer ； Option B: Radiative heat transfer occurs in the form of electromagnetic waves, and it does not depend on a medium or surface contact ； Option C: The heat exchange process involves two conversions of energy forms, namely the conversion of the internal energy of the emitting object into electromagnetic energy, and the conversion of electromagnetic energy back into internal energy by the absorbing object ； Option D: The process of thermal radiation from an object is proportional to the fourth power of its thermodynamic temperature, in accordance with the Stefan-Boltzmann law.