SI unit of Stefan-Boltzmaan constant is. . .. . . .

1.	SI unit of Stefan-Boltzmaan constant is. . .. . . .
Answer» `WM^(-2)K^(-4)` `Wm^(-2)` `Wm^(-2) K^(-1)` `Wm^(-2)K^(-2)` Solution :From stefan-Boltzman.s law `W-A e sigma T^(4)e=1` (EMISSIVITY- unitless) `:.(W)/(AT^(4)t)= sigma` `:.` UNITS of `sigma=(J)/(m^(2)K^(4)s)` `=(W)/(m^(2)K^(-4))`

Discussion