第三节量子物理学的建立黑体辐射与紫外灾变（The third section is the establishment of quantum physics, black body radiation and ultraviolet catastrophe）.docVIP

第三节量子物理学的建立黑体辐射与紫外灾变（The third section is the establishment of quantum physics, black body radiation and ultraviolet catastrophe） Birds want to fly high, flutter first, people seek progress, first read. - Li Kuchan The third section: the establishment of quantum physics Black body radiation and ultraviolet catastrophe Plancks energy hypothesis Einsteins quantum hypothesis An exploration of the atomic structure De Broglies mass wave? The establishment of quantum mechanics First, black body radiation and ultraviolet catastrophe A blackbody is an object that absorbs and irradiates radiation of various wavelengths. A hollow metal ball with a small pore, very close to the black body, radiating into the hole of the metal ball. Absorbed and reflected, the injected radiation is practically absorbed. When the cavity is heated, the cavity wall emits radiation, and the minimal part escapes through the hole. The blackbody is the ideal absorber and the ideal emitter. As long as the object is above absolute zero, it radiates energy in the form of electromagnetic waves, and the percentages of the various wavelengths in the total radiation are different. Blackbody radiation study In 1859, the emissive power of Kirchhoffs thermal radiation, e (V, T), and the absorption power a (V, T) were equal, and equal to the radiation of the blackbody at the same wavelength at this temperature In 1879, Stepan summed up the relationship between the total energy of black body radiation and the blackbody temperature by four times Wien formula In 1893, Wayne (Wien) got the angular Wayne displacement law: Rayleigh jeans law? A a?: In 1900, British physicist Rayleigh introduced another law of radiation, radiation When the intensity is proportional to its absolute temperature, it is inversely proportional to the wavelength of the ray of light Square: An ultraviolet catastrophe that troubles the physics world? For? Due to radiation ability in the ultraviolet part tends to infinity? An ultraviolet catast