What is stefans law - Definition and Meaning

Stefans Law :

Stefan's law states that the total amount of heat energy radiated per second per unit area of a perfect black body is directly proportional to the fourth power of its absolute temperature.


Formula :

E α T4 or E = σ T4 σ = Stefan's constant ( 5.67 * 10-8 W m-2 K-4)

Example :

The sun's surface temperature is 4500K. How much power is radiated by one square meter of the sun's surface? Temperature (T) = 4500k Radiant Energy (E) = 5.67 * 10-8 * 4500 Radiant Energy (E) = 23250543.75
Scientific Notation Statistical Significance

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