General Laws of Radiation
¥All objects above 0 K emit radiant energy
¥Hotter objects radiate more energy per unit area than colder objects, result of Stefan-Boltzman Law
¥The hotter the radiating body, the shorter the wavelength of maximum radiation, result
of WienÕs Displacement Law
¥Objects that are good absorbers of radiation are also good emittersÉtodayÕs lecture!