Sumit Majumdar11 Years agoDear student,The Stefen’s law or the Stefen – Boltzmann Law is theprinciplethattheenergyradiatedpersecondbyunitareaofa blackbodyatthermodynamictemperatureT isdirectlyproportionaltoT4.Theconstantof proportionalityistheStefanconstant.RegardsSumit