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I have been thinking at this for quite a while now and I just can`t figure it out.

1)Use Plancks radiation law to show that the total energy flow is given by Stefan-Boltzmann law, J=@T^4, where @ is a constant.

Plancks radiation law:I(v,T)=(2piv^2/c^2)(hv/e^(hv/kT)-1)

I dont know of anything to do, can anybody give me a hint?

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# Homework Help: Planck,Stefan-Boltzmann law

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