Q. In MKS system, Stefan’s constant is denoted by $\sigma$. In CGS system multiplying factor of $\sigma$ will be
A) 1
B) $10^{3}$
C) $10^{5}$
D) $10^{2}$
Explanation
(b) In M.K.S. system unit of $\sigma$ is $\frac{J}{m^{2} \times s \times K^{4}}$
$\Rightarrow 1\frac{J}{m^{2} \times s \times K^{4}} = \frac{10^{7}erg}{10^{4}cm^{2} \times s \times K^{4}} = 10^{3}\frac{erg}{cm^{2} \times s \times K^{4}}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.