A) \[W-{{m}^{2}}-{{K}^{4}}\]
B) \[W-{{m}^{3}}/{{K}^{4~}}\]
C) \[W/{{m}^{2}}-K\]
D) \[W/{{m}^{2}}-{{K}^{4}}\]
Correct Answer: D
Solution :
| According to Stefan's law, |
| \[E\,\propto \,\,{{T}^{4}}\] |
| or \[E\,=\,\,\sigma \,{{T}^{4}}\] |
| Here, \[\sigma \] is proportionality constant called the Stefan's constant. |
| The unit of Stefan's constant is watt \[\text{metr}{{\text{e}}^{-2}}\,\text{kelvi}{{\text{n}}^{-4}}\] or \[W/{{m}^{2}}-{{K}^{4}}\] |
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