Physics And Measurement Question 269

Question: The unit of the Stefan-Boltzmann’s constant is

Options:

A) $ W/m^{2}k^{4} $

B) $ W/m^{2} $

C) $ W/m^{2}K $

D) $ W/m^{2}K^{2} $

Show Answer

Answer:

Correct Answer: A

Solution:

[a] $ E=\sigma AT^{4} $ E is energy dissipated per second. $ \sigma =\frac{E}{AT^{4}}=\frac{Watt}{m^{2}K^{4}} $



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