Search results
6 days ago · The Ultraviolet Catastrophe and the Dual Nature of Light By the late 1800's, the study of blackbody radiation helped in developing a model to explain how objects emit electromagnetic radiation: Atoms and molecules are made of charged particles, and when these particles vibrate, they radiate electromagnetic waves.
2 days ago · When in thermal equilibrium, any physical object (a "black body") continuously emits electromagnetic radiation to its environment. If the spectrum of this radiation were continuous, the energy contained in this radiation would be infinite, a so called ultraviolet catastrophe.
Jun 18, 2024 · The Challenge of the Ultraviolet Catastrophe. The Rayleigh-Jeans Law predicted that as the wavelength approached zero, the intensity of radiation would soar infinitely, leading to what is known as the “ultraviolet catastrophe.”
18 hours ago · UV radiation was discovered in 1801 when the German physicist Johann Wilhelm Ritter observed that invisible rays just beyond the violet end of the visible spectrum darkened silver chloride -soaked paper more quickly than violet light itself.
Jun 11, 2024 · In Thomson's experiment, he observed cathode rays emitted from a cathode in a vacuum tube. By subjecting these rays to perpendicular electric and magnetic fields, he observed deflection. The cathode rays were deflected in a manner consistent with the L.
Jun 28, 2024 · In the early 1900's, Einstein and Planck postulated that light came in discrete packets, called photons. This explained the long standing mystery of the ultraviolet catastrophe, as well as the photo-electric effect.
Jun 23, 2024 · Along with other evidence, equipartition's failure to model black-body radiation—also known as the ultraviolet catastrophe—led Max Planck to suggest that energy in the oscillators in an object, which emit light, were quantized, a revolutionary hypothesis that spurred the development of quantum mechanics and quantum field theory.
