Assertion The SI unit of Stefan's constant is \( \mathrm{Wm}^{-2} \mathrm{~K}^{-4} \). Reason Th...

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Assertion The SI unit of Stefan's constant is \( \mathrm{Wm}^{-2} \mathrm{~K}^{-4} \).
Reason This follows from Stefan's law, \( E=\sigma T^{4} \) \( \therefore \quad \sigma=\frac{E}{T^{4}} \)
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