The Sun is approximately an ideal blackbody radiator with a surface temperature of 5810K. (a) Find the wavelength at which its spectral radiancy is maximum and (b) identify the type of electromagnetic wave corresponding to that wavelength. (c) The universe is approximately an ideal blackbody radiator with radiation emitted when atoms rst formed. Today the spectral radiancy of that radiation peaks at a wavelength of 1.06 mm (in the microwave region). What is the corresponding temperature of the universe? (a) Number n Units v (bl V (c) Number n Units V