(adsbygoogle = window.adsbygoogle || []).push({}); R=[tex]\epsilon[/tex][tex]\sigma[/tex]T[tex]^{4}[/tex]

[tex]\epsilon[/tex] --> emmisivity

[tex]\sigma[/tex] --> Steffan's constant

T[ --> Temp (in Kelvin)

should i start with steffan-boltzmann's equation (since its the nearest formula)?

thanks... ^_^

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# How is this derived?

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