Blackbody Radiation: Emissive Power Spectrum

This lecture covers the fundamental concepts of blackbody radiation, focusing on the emissive power spectrum and Planck's law. It explains how a blackbody absorbs and emits radiation, the spectral hemispherical emissive power, and the different radiation constants involved. The lecture also discusses Wien's and Rayleigh-Jean's approximations, as well as the displacement law. Various forms of Planck's law are presented, along with the emissive power fraction table. The lecture concludes with the importance of blackbody emissive power in different temperature ranges and the implications of surface radiative properties.