The Stefan - Boltzmann law describes the power radiated from a black body: a) S=klnW b) varepsilon =(3)/(2)kT c) R=sigma T^4 d) E=hv

The correct answer is:<br /><br />c) \( R = \sigma T^{4} \)<br /><br />The Stefan-Boltzmann law states that the total power radiated per unit area of a black body is proportional to the fourth power of its absolute temperature. Here, \( R \) represents the radiant energy emitted per unit area, \( \sigma \) is the Stefan-Boltzmann constant, and \( T \) is the absolute temperature of the black body.