AIIMS 2019 Physics Stefan-Boltzmann Law MCQ Question

Option A is correct because it represents the calculated power output, P, using the Stefan-Boltzmann law, which states that the power radiated by a black body is proportional to the fourth power of its absolute temperature (T). The values substituted into the equation yield approximately 1425 W, confirming the accuracy of the calculation. Other options are not applicable as they do not provide any relevant information or alternative answers to the problem. Understanding this concept is crucial in thermodynamics, particularly in the study of heat transfer and radiation.