Heat and thermodynamics
Two spherical balls A (radius 6 cm ) and B (radius 18 cm ) are at temperatures T1 and T2 respectively. The maximum intensity in the emission spectrum of A is at 500nm and in that of B is at 1500nm. Considering them to be black bodies, what will be the ratio of the rate of total energy radiated by A to that of B?
The answer is 9.
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