Diemensional formula of Stefan constant is

Options

A. a)`[MT^-3 K^-4]`
B. b)`[MLT^-2 K^-4]`
C. c)`[ML^2 T^-2]`
D. d)`[MT^-2 L^0]`

Answer

B

Explanation

By Stefan.s law
`E=sigma T^4`
where `sigma` is the Stefan .s constant
`therefore sigma =E/T^4`
or `[sigma]=([E])/([T^4])=([MLT^-2])/([K^4])`
`[MLT^-2 K^-4]`