Hi,(adsbygoogle = window.adsbygoogle || []).push({});

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?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Planck,Stefan-Boltzmann law

**Physics Forums | Science Articles, Homework Help, Discussion**