lect10

... an atom has a number of stable states in which the electrons orbit the nucleus in accordance with Newton’s Laws but do not radiate energy an atom emits or absorbs energy only ...

... an atom has a number of stable states in which the electrons orbit the nucleus in accordance with Newton’s Laws but do not radiate energy an atom emits or absorbs energy only ...

Bohr´s Third Postulate

... don’t all the photoelectrons have the same kinetic energy when they leave the metal’s surface? 4. What property of the emitted electrons depends on the intensity of incident light?What property of the emitted photoelectrons depends on the frequency of incident light? ...

... don’t all the photoelectrons have the same kinetic energy when they leave the metal’s surface? 4. What property of the emitted electrons depends on the intensity of incident light?What property of the emitted photoelectrons depends on the frequency of incident light? ...

Modern Physics Lesson 3

... Conclusion: A photon is a particle of light that has energy and momentum. However, photons have no mass and travel at the speed of light, c. deBroglie Wavelength Louis deBroglie proposed in 1923 that if waves behave like particles, then particles should also behave like waves! This was the beginnin ...

... Conclusion: A photon is a particle of light that has energy and momentum. However, photons have no mass and travel at the speed of light, c. deBroglie Wavelength Louis deBroglie proposed in 1923 that if waves behave like particles, then particles should also behave like waves! This was the beginnin ...

Homework 3

... 1. Explain the terms wavelength and amplitude. If a photon has a frequency of 9 1010 Hz what is its wavelength? Which region of the electromagnetic spectrum does this correspond to? ...

... 1. Explain the terms wavelength and amplitude. If a photon has a frequency of 9 1010 Hz what is its wavelength? Which region of the electromagnetic spectrum does this correspond to? ...

Modern physics 2330

... 4- ( ) The number, strength, and exact position of the lines in the spectrum of an element depend only upon temperature. 5- ( ) According to de Broglie, the electron of the Bohr atom forms a standing h wave around the nucleus with . p 6- ( ) Davisson-Germer experiment (1927) is a direct experime ...

... 4- ( ) The number, strength, and exact position of the lines in the spectrum of an element depend only upon temperature. 5- ( ) According to de Broglie, the electron of the Bohr atom forms a standing h wave around the nucleus with . p 6- ( ) Davisson-Germer experiment (1927) is a direct experime ...

Homework 2

... (b) According to the Bohr model, electrons move on circular orbits and the angular momentum L can assume the values L = n~, n ∈ {1, 2, . . .}. Determine the possible energies En , orbital radii rn , and velocity ratios vn /c, where c is the speed of light. (c) Bohr assumed that only radiation of fre ...

... (b) According to the Bohr model, electrons move on circular orbits and the angular momentum L can assume the values L = n~, n ∈ {1, 2, . . .}. Determine the possible energies En , orbital radii rn , and velocity ratios vn /c, where c is the speed of light. (c) Bohr assumed that only radiation of fre ...

2710 PS3 1 Problem Set #3 Comparing classical electromagnetic

... Problem 1 refers to: A standing electric field wave (one with lots of photons) in a quantum wire stretching between x = 0 and x = L is described by E(x,t)=Emax sin(3π x L)cos(3π ct L) . Let L = 900 nm. 1.(a) What is the wavelength of the wave? What is the ordinary frequency? In which part of the ele ...

... Problem 1 refers to: A standing electric field wave (one with lots of photons) in a quantum wire stretching between x = 0 and x = L is described by E(x,t)=Emax sin(3π x L)cos(3π ct L) . Let L = 900 nm. 1.(a) What is the wavelength of the wave? What is the ordinary frequency? In which part of the ele ...

Development of Quantum Mechanics Waves

... If light is a wave with particle properties, are electrons particles with wave properties? C. J. Davisson and L. H. Germier at Bell labs proved that electrons produce diffraction patterns and verified deBroglies hypothesis ...

... If light is a wave with particle properties, are electrons particles with wave properties? C. J. Davisson and L. H. Germier at Bell labs proved that electrons produce diffraction patterns and verified deBroglies hypothesis ...

Atomic Diffraction Dr. Janine Shertzer College of the Holy Cross

... The wave-particle duality is fundamental to quantum mechanics. Light can behave like a particle (photon); matter can behave like a wave. The wavelength associated with a particle is inversely proportional to its momentum p: λ = h / p, where h is Planck’s constant. For cold atoms, the wavelength is l ...

... The wave-particle duality is fundamental to quantum mechanics. Light can behave like a particle (photon); matter can behave like a wave. The wavelength associated with a particle is inversely proportional to its momentum p: λ = h / p, where h is Planck’s constant. For cold atoms, the wavelength is l ...

Chemistry 1 Concept 5 “Electrons in Atoms” Study Guide

... current is passed through a tube of hydrogen gas at low pressure is _________________ 3. The energy of a photon is related to its ______________ 4. Give the number of orbitals for each sublevel: s _____, p ______, d ______, f ______ 5. What is the wavelength of microwaves of 4.0 x 109 Hz frequency? ...

... current is passed through a tube of hydrogen gas at low pressure is _________________ 3. The energy of a photon is related to its ______________ 4. Give the number of orbitals for each sublevel: s _____, p ______, d ______, f ______ 5. What is the wavelength of microwaves of 4.0 x 109 Hz frequency? ...

ph 2811 / 2808 - quantum mechanics

... 9. What are symmetric and antisymmetric wave functions? Show that the symmetry character of a wave function does not change with time. Explain how symmetric and antisymmetric wave functions are constructed from unsymmetrized solution of the schrodinger equation of a system of indistinguishable parti ...

... 9. What are symmetric and antisymmetric wave functions? Show that the symmetry character of a wave function does not change with time. Explain how symmetric and antisymmetric wave functions are constructed from unsymmetrized solution of the schrodinger equation of a system of indistinguishable parti ...

LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

... 4. Prove that the square of the angular momentum commutes with its z-component. 5. If A and B are two operators, then show that [A-1[A,B]] = 2B 6. What are unitary transformations? 7. Show that commuting operators have simultaneous eigenfunctions. 8. What are indistinguishable particles? 9. What is ...

... 4. Prove that the square of the angular momentum commutes with its z-component. 5. If A and B are two operators, then show that [A-1[A,B]] = 2B 6. What are unitary transformations? 7. Show that commuting operators have simultaneous eigenfunctions. 8. What are indistinguishable particles? 9. What is ...

Quantum_PPT

... frequency (f0)ejects electrons no matter what intensity the light. • B) Photon- electromagnetic radiation travels in packets with a given amount of energy based on the frequency of the radiation. [Einstein] • E = hf ...

... frequency (f0)ejects electrons no matter what intensity the light. • B) Photon- electromagnetic radiation travels in packets with a given amount of energy based on the frequency of the radiation. [Einstein] • E = hf ...

Quantum Mechanics

... light was a wave (Newton thought it was a particle, but Young disproved his theories) According to wave theory, it should not depend on color of light, but rather the intensity Einstein determined that the photoelectric effect is in fact proof that light is a photon (particle) and has energy bas ...

... light was a wave (Newton thought it was a particle, but Young disproved his theories) According to wave theory, it should not depend on color of light, but rather the intensity Einstein determined that the photoelectric effect is in fact proof that light is a photon (particle) and has energy bas ...

Pre-AP Chemistry

... Radiation and Spectra Review. Complete the following short answer questions. 1. What kind of proportion is shown by the equation c = λ ν? 2. Who stated that electromagnetic radiation has a dual nature? 3. How many meters are 665 nm equal to? 4. What wave measure is identified by the unit Hz? 5. What ...

... Radiation and Spectra Review. Complete the following short answer questions. 1. What kind of proportion is shown by the equation c = λ ν? 2. Who stated that electromagnetic radiation has a dual nature? 3. How many meters are 665 nm equal to? 4. What wave measure is identified by the unit Hz? 5. What ...

BasicQuantumMechanics18And20January2017

... • It is impossible to simultaneously describe with absolute accuracy the energy of a particle and the instant of time the particle has this energy ...

... • It is impossible to simultaneously describe with absolute accuracy the energy of a particle and the instant of time the particle has this energy ...

Quantum Mechanical Energy and You!

... In the new realm of thought, macroscopic objects now be thought of in terms of their matter waves or Debroglie waves. Waves are quantities that are highly non local and spread through space in time. Thus, the idea of how we talk of the fundamental quantity position must be re-invented, as well as al ...

... In the new realm of thought, macroscopic objects now be thought of in terms of their matter waves or Debroglie waves. Waves are quantities that are highly non local and spread through space in time. Thus, the idea of how we talk of the fundamental quantity position must be re-invented, as well as al ...

MIT Physics Graduate General Exams

... Students studying for the Fall 2003 Part I exam found it useful to first categorize each problem by the concept they thought was being tested. Such an approach simplified their subsequent attempt at solving the problem. The following is a list of all the concepts they thought could be used as the ba ...

... Students studying for the Fall 2003 Part I exam found it useful to first categorize each problem by the concept they thought was being tested. Such an approach simplified their subsequent attempt at solving the problem. The following is a list of all the concepts they thought could be used as the ba ...