The sun emits light having maximum intensity at a wavelength 468nm. Assume emissivity of sun is 1. Calculate its surface temperature. σ= 5.67*10^-8W/m^2K^4.(a) 6800K(b) 3400K(c) 6196K(d) 7200K
Right choice is (c) 6196KThe explanation: Using Wein’s displacement law: λT = 2.9*10^-3,we get T = 2.9*10^-3/(468*10^-9)= 6196 K.