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}} $