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Two spherical bodies, A(radius 6cm) and ...

Two spherical bodies, A(radius 6cm) and B(radius 18cm) are at temperature `T_1 and T_2`, 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?

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The correct Answer is:
9
`lamda_(m)T=`constant. `lamda_(A)T_(A)=lamda_(B)T_(B)`
Now rate of total energy radiated `propAT^(4)`
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