1.

Rate of emitted radiation energy from perfect black body at 500 K is proportional to. . . ...

Answer»

`(500)^(4)`
`(500)^(3)`
`(500)^(2)`
500

Solution :From STEFAN - BOLTZMANN law,
`W=sigmaAT^(4)t`
`:.WpropT^(4)` (Other are constant)
`:.W PROP(500)^(4)`


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