Einstein
... Listen to Albert Einstein explain his famous formula: http://www.aip.org/history/einstein/sound/voice1.mp3 ...
... Listen to Albert Einstein explain his famous formula: http://www.aip.org/history/einstein/sound/voice1.mp3 ...
Introduction Slides
... of particles photons, of energy E h The kinetic energy of the emitted electrons is the energy left over after the electron has been “lifted” over the work function barrier ...
... of particles photons, of energy E h The kinetic energy of the emitted electrons is the energy left over after the electron has been “lifted” over the work function barrier ...
The Bohr Theory, Matter Waves, and Quantum Theory
... The Bohr Theory, Matter Waves, and Quantum Theory At the beginning of the 20th century, classical physics was thought to be in “good shape”. There were only a few problems that could not be explained by Newton’s Laws. Matter was described by Newton’s Laws, and light was described as a wave, in accor ...
... The Bohr Theory, Matter Waves, and Quantum Theory At the beginning of the 20th century, classical physics was thought to be in “good shape”. There were only a few problems that could not be explained by Newton’s Laws. Matter was described by Newton’s Laws, and light was described as a wave, in accor ...
107 chem Assement Q
... c. fundamental state. d. original state. 5. The hydrogen emission spectrum includes light with a wavelength of 434 nanometers. This is caused by an electron moving from: a. the n = 3 state to the n = 2 state. b. the n = 4 state to the n = 2 state. c. the n = 5 state to the n = 2 state. d. the n = 6 ...
... c. fundamental state. d. original state. 5. The hydrogen emission spectrum includes light with a wavelength of 434 nanometers. This is caused by an electron moving from: a. the n = 3 state to the n = 2 state. b. the n = 4 state to the n = 2 state. c. the n = 5 state to the n = 2 state. d. the n = 6 ...
Chapter 8 - Bakersfield College
... by the German physicist Max Planck in 1900. 1. Planck stated that the light emitted by a hot object is given off in discrete units or quanta. 2. The higher the frequency of the light,the greater the energy per quantum. 3. All the quanta associated with a particular frequency of light have the same e ...
... by the German physicist Max Planck in 1900. 1. Planck stated that the light emitted by a hot object is given off in discrete units or quanta. 2. The higher the frequency of the light,the greater the energy per quantum. 3. All the quanta associated with a particular frequency of light have the same e ...
Document
... zinc will lose its charge if it is exposed to ultraviolet light. This phenomenon is called the photoelectric effect ...
... zinc will lose its charge if it is exposed to ultraviolet light. This phenomenon is called the photoelectric effect ...
Document
... In the case when the KE of the particle is so high that the equation begins to fail, this distance of the closest approach is approximately equal to the nuclear radius ...
... In the case when the KE of the particle is so high that the equation begins to fail, this distance of the closest approach is approximately equal to the nuclear radius ...
Chemistry 330 Chapter 11
... Energy of the H atom is quantized Electron is promoted from a low to high energy level by the absorption of a photon The amount of energy absorbed and emitted by the atom is quantized Only orbits of certain angular momenta are allowed ...
... Energy of the H atom is quantized Electron is promoted from a low to high energy level by the absorption of a photon The amount of energy absorbed and emitted by the atom is quantized Only orbits of certain angular momenta are allowed ...
Chapter 27
... • At short wavelengths, classical theory predicted infinite energy • At short wavelengths, experiment showed no or little energy • This contradiction is called the ultraviolet catastrophe ...
... • At short wavelengths, classical theory predicted infinite energy • At short wavelengths, experiment showed no or little energy • This contradiction is called the ultraviolet catastrophe ...
Waves & Oscillations Physics 42200 Spring 2013 Semester Matthew Jones
... Electromagnetic Radiation By 1864, Maxwell had introduced four equations that described all known electromagnetic phenomena. ...
... Electromagnetic Radiation By 1864, Maxwell had introduced four equations that described all known electromagnetic phenomena. ...
final2012
... 1) a) What is the minimum energy(in eV) and wavelength(in nm) of a photon needed to ionize the n=3 orbit of He+. b) If you use a photon of wavelength 100nm to ionize the electron in this system what is the stopping potential (in V) for the ionized electron. (15 points) 2) A gold foil is used in a Ru ...
... 1) a) What is the minimum energy(in eV) and wavelength(in nm) of a photon needed to ionize the n=3 orbit of He+. b) If you use a photon of wavelength 100nm to ionize the electron in this system what is the stopping potential (in V) for the ionized electron. (15 points) 2) A gold foil is used in a Ru ...
Arrangement of Electrons in Atoms
... From wavelengths of emission spectrum Bohr calculated energy levels of H-atom Model worked ONLY for H-atom ...
... From wavelengths of emission spectrum Bohr calculated energy levels of H-atom Model worked ONLY for H-atom ...
Lecture 2
... This fitting parameter had the unit of an action. Later Planck showed that one could explain this law if one makes the physical assumption that EM radiation is quantized and comes in energy quanta that depend on the frequency E0 (n) = hn = h̄w In other words light with a certain frequency comes in p ...
... This fitting parameter had the unit of an action. Later Planck showed that one could explain this law if one makes the physical assumption that EM radiation is quantized and comes in energy quanta that depend on the frequency E0 (n) = hn = h̄w In other words light with a certain frequency comes in p ...
Matter is made of atoms The atom of each element is characterized
... This is consistent with the observation that atoms which have absorbed extra energy do emit light. The energy of the light must be accounted for by a change in the energy of the atom. Eventually the atom would lose so much energy by radiation that it would collapse. ``Eventually'' here means in abou ...
... This is consistent with the observation that atoms which have absorbed extra energy do emit light. The energy of the light must be accounted for by a change in the energy of the atom. Eventually the atom would lose so much energy by radiation that it would collapse. ``Eventually'' here means in abou ...
Slide 1
... Electrons as waves • Can be diffracted – wave passes by the edge or through a small opening • Interference – waves pass over each other • Heisenberg uncertainty principle – it is impossible to determine simultaneously both the position and velocity of an e- or any other particle. ...
... Electrons as waves • Can be diffracted – wave passes by the edge or through a small opening • Interference – waves pass over each other • Heisenberg uncertainty principle – it is impossible to determine simultaneously both the position and velocity of an e- or any other particle. ...
Mathematical Methods of Physics – Fall 2010 – Dr
... Ex: e + positron each have rest mass .511 Mev, so photon must have 1.022 MeV What is a photon? (p.90) speed = c mass = 0 photons have energy E = h = hc/ and momentum p = h/ can be created or destroyed when radiation (e.g. particles) are emitted or absorbed can have particle-like collisi ...
... Ex: e + positron each have rest mass .511 Mev, so photon must have 1.022 MeV What is a photon? (p.90) speed = c mass = 0 photons have energy E = h = hc/ and momentum p = h/ can be created or destroyed when radiation (e.g. particles) are emitted or absorbed can have particle-like collisi ...
Introduction to Physics (in a nutshell) Based on the Physics Worktext
... Aristotle – believed that all things are made of four elements: earth, air, fire, and water Johannes Kepler – discovered that planets follow an elliptical orbit which can be calculated for use in flight paths and spacecraft today Count Rumford - investigated heat energy James P. Joule – investigated ...
... Aristotle – believed that all things are made of four elements: earth, air, fire, and water Johannes Kepler – discovered that planets follow an elliptical orbit which can be calculated for use in flight paths and spacecraft today Count Rumford - investigated heat energy James P. Joule – investigated ...
Supplment to Chapter 24: Energy Levels of a Free
... same way. Interacting relativistic particles can be created and destroyed — a process which is most efficiently described in terms of quantum field theory. But it is possible to think of a free relativistic particle like a non-relativistic one with the Hamiltonian Ĥ = [(mc2 )2 + ( p̂c)2 ]1/2 . ...
... same way. Interacting relativistic particles can be created and destroyed — a process which is most efficiently described in terms of quantum field theory. But it is possible to think of a free relativistic particle like a non-relativistic one with the Hamiltonian Ĥ = [(mc2 )2 + ( p̂c)2 ]1/2 . ...
The History of Quantum Mechanics
... zinc will lose its charge if it is exposed to ultraviolet light. This phenomenon is called the photoelectric effect ...
... zinc will lose its charge if it is exposed to ultraviolet light. This phenomenon is called the photoelectric effect ...