Question
What is the units of emissive power in stefan's law?(A) $\mathrm{Ws}^{-1}$(B) W(C) $\mathrm{Ws}^{-1} \mathrm{~m}^{-2}$(D) $\mathrm{Wm}^{-2}$
Step 1
The law is usually expressed in the form: j* = σT^4, where σ is the Stefan–Boltzmann constant. Show more…
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Key Concepts
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Units and Measurements
Round 1
Find the dimensional formula for energy per unit surface area per unit time (a) $\mathrm{M}^{1} \mathrm{~L}^{0} \mathrm{~T}^{-2}$ (b) $\mathrm{M}^{0} \mathrm{~L}^{1} \mathrm{~T}^{-1}$ (c) $\mathrm{M}^{1} \mathrm{~L}^{0} \mathrm{~T}^{-3}$ (d) $\mathrm{M}^{1} \mathrm{~L}^{-1} \mathrm{~T}^{1}$
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