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JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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A black body emits heat at the rate of 20 W20 \mathrm{~W}. When its temperature is 727∘C727^{\circ} \mathrm{C}. Another black body emits heat at the rate of 15 W15 \mathrm{~W}, when its temperature is 227∘C227^{\circ} \mathrm{C}. Compare the area of the surface of the two bodies, if the surrounding is at NTP.
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Correct option: D
1:121: 12
Option D (1:121: 12) is correct because it is calculated by comparing the power emitted by two black bodies using Stefan-Boltzmann law, considering their temperatures and areas.

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