What is the SI unit for Stefan-Boltzmann constant (σ)? - Heat Transfer

Q.  What is the SI unit for Stefan-Boltzmann constant (σ)?
- Published on 11 Aug 15

a. W / m K4
b. W / m2 K4
c. W / K4
d. W K4 / m2

ANSWER: W / m2 K4

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