Question

The ratio of S.I. to C.G.S. units for Stefan's constant is :

• A. $1100$
• B. $11000$
• C. $100$
• D. $1000$

Answer 1

The correct option is D $1000$

Units of stefan's constant $\sigma$ = $W{m}^{-2}{K}^{-4}$=$kg{m}^0{s}^{-3}{K}^{-4}$

In CGS Units, 1 kg =1000 gm

$\therefore$ units of stefan's constant in CGS Units $=1000{gs}^{-3}{K}^{-4}$

Therefore, Ratio of S.I to C.G.S units $=1000$

Hence, option D is correct.