Blackbody radiation and stefans constant

[Logistics]

What is the rate of energy radiation per unit area of a blackbody at a temperature of 260K ?

Where's the tricky part in this question?

Surely the answer to this question can't be just

stefans constant * T^4

ie. 5.67x10^-8 * 260^4 = 259.105 W/m^2

 

[OlderDan]

Not every problem is tricky. The hard work was done to derive the constant. If you had been asked to that, it would be a whole different thing.

 

[Logistics]

That's the question. Nothing else was asked.

What confuses me is how it says ...per unit area...in the question. So I'm thinking maybe they want some other number, I'm not sure

 

[dextercioby]

What's the definition of Stefan-Boltzmann's constant...?

Daniel.