1. Wien's displacement law is a relationship derived from Planck's spectral energy density formula, which relates the temperature of an object to the wavelength at which it emits the most electromagnetic energy. This law can be written as: AmaxT = 2.898 x 10-3 m . K. (a) Use Wien's law to determine the peak of the blackbody radiation spectrum for: (i) The surface of the sun (5778 K) (ii) A human being at normal body temperature (37.C) (b) Radiation from the cosmic microwave background is peaked at Amax = 1.06 mm. Use Wien's law to determine the average temperature of the universe around us