Question 78

Two spherical bodies A (radius 6 cm) and B (radius 18 cm) are at temperatures $$T_1$$ and $$T_2$$, respectively. The maximum intensity in the emission spectrum of A is at 500 nm and in that of B is at 1500 nm. Considering themto be black bodies, what will be the ratio of the rate of total energy radiated by A to that of B ?

Correct Answer: 9

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