Modern Physics: page 3

AP Physics 2: Modern Physics 14: Wave-Particle Duality & de Broglie Hypothesis

AP Physics 2: Modern Physics 15: Davisson-Germer Experiment

• • Diffraction pattern of x-ray beam passing through AL foil (left side) and Diffraction pattern of electron beam passing through AL foil (right side): http://butane.chem.uiuc.edu/cyerkes/Chem102AE_Fa08/homepage/Chem102AEFa07/Lecture_Notes_102/Lecture%209_files/image028.jpg: 

• • In 1937, Clinton Davisson and George Paget Thomson shared a Nobel Prize "for their experimental discovery of the diffraction of electrons by crystals". An interesting fact is that J. J. Thomson, the father of G. P. Thomson, is credited for the discovery of electrons and received a Nobel Prize in 1906 "in recognition of the great merits of his theoretical and experimental investigations on the conduction of electricity by gases". He measured the electron’s charge to mass ratio showing that electrons are particles, while his son G. P. Thomson received a Nobel Prize for demonstrating that electrons can have wave properties.  

AP Physics 2: Modern Physics 16: Principle of Complementarity

• • Animation showing the wave-particle duality with a double slit experiment and effect of an observer: DUALITE VA  https://www.youtube.com/watch?v=wsq7qXr9Hl0 For more on TOUT EST QUANTIQUE (Quantum Made Simple), please check out: http://www.toutestquantique.fr/.

AP Physics 2: Modern Physics 17: Early Atom Models, Plum-Pudding Model

AP Physics 2: Modern 18: Rutherford’s Experiment & Planetary/Nuclear Model of Atom