PH 122 Lecture Notes - Emissivity
Document Summary
An electromagnetic wave is made up of oscillating electric and magnetic fields. Gamma rays may have wavelengths smaller than the nucleus of an atom. Waves at the radio end of the spectrum tend to look like waves. At the other end, they tend to look more like particles. A solid object"s thermal energy is the kinetic energy of individual atoms; the atoms are vibrating. = e at4 e emissivity (for most objects at normal temperatures, this is close to 1) Stefan-boltzmann constant, 5. 67 x 10-8 w/(m2 k4)
