Physics And Measurement Question 346

Question: Unit of Stefan’s constant is

[MP PMT 1989]

Options:

A) $ J{{s}^{-1}} $

B) $ J{{m}^{-2}}{{s}^{-1}}{{K}^{-4}} $

C) $ J{{m}^{-2}} $

D) $ Js $

Show Answer

Answer:

Correct Answer: B

Solution:

$ \frac{Q}{t}=\sigma AT^{4}\Rightarrow \sigma =J{{m}^{-2}}{{s}^{-1}}{{K}^{-4}} $



NCERT Chapter Video Solution

Dual Pane