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Consider a region of otherwise empty space that contains thermal cavity (electromagnetic) radiation. The system is left undisturbed in a metal box that is

Consider a region of otherwise empty space that contains thermal cavity (electromagnetic) radiation. The system is left undisturbed in a metal box that is at the same temperature as the surrounding room. (a 2 points) What is the temperature of the cavity radiation relative to the temperature of the surrounding box? Provide a 1-2 sentence explana- tion/justification.

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