Light waves, radio waves and photons
... anodes by the emission of individual photoelectrons from the cathodes are fed to counters, and also to a coincidence detector. If the resolving time of the coincidence detector is known it is easy to calculate, from the counting rates in the two photomultipliers, the coincidence rate which should be ...
... anodes by the emission of individual photoelectrons from the cathodes are fed to counters, and also to a coincidence detector. If the resolving time of the coincidence detector is known it is easy to calculate, from the counting rates in the two photomultipliers, the coincidence rate which should be ...
in-class worksheet
... A maximum of ____ e– fit in each orbital! PAULI EXCLUSION PRINCIPLE In a given atom, no two electrons can have four identical quantum numbers. ...
... A maximum of ____ e– fit in each orbital! PAULI EXCLUSION PRINCIPLE In a given atom, no two electrons can have four identical quantum numbers. ...
Chapter 1 Atoms Properties of Matter Intensive vs. Extensive
... SI Units of Measurements Prefixes used in SI base units Derived Units Conversion Factor or Dimensional analysis Accuracy vs. Precision Significant Figures (precise and estimated) Scientific Notation Direct and Inverse or Indirect proportionality Dependent and Independent Variables ...
... SI Units of Measurements Prefixes used in SI base units Derived Units Conversion Factor or Dimensional analysis Accuracy vs. Precision Significant Figures (precise and estimated) Scientific Notation Direct and Inverse or Indirect proportionality Dependent and Independent Variables ...
history of the atom ppt student copy
... 4. Atoms of different elements combined in whole-number ratios to form chemical compounds. 5. In chemical reactions, ____________________________________ ________________________________________________________ •Dalton’s theory helped explain the law of conservation of mass because it stated that at ...
... 4. Atoms of different elements combined in whole-number ratios to form chemical compounds. 5. In chemical reactions, ____________________________________ ________________________________________________________ •Dalton’s theory helped explain the law of conservation of mass because it stated that at ...
Chapter 4 Powerpoint
... 1.) Emission Spectrum: All wavelengths of light emitted by an atom. 2.) Absorption Spectrum: All wavelengths of light that are not absorbed by an atom. This is a continuous spectrum with wavelengths removed that are absorbed by the atom. These are shown as black lines for absorbed light. Continu ...
... 1.) Emission Spectrum: All wavelengths of light emitted by an atom. 2.) Absorption Spectrum: All wavelengths of light that are not absorbed by an atom. This is a continuous spectrum with wavelengths removed that are absorbed by the atom. These are shown as black lines for absorbed light. Continu ...
Physics 12 Notes Modern Physics Learning Outcomes (Students will
... photoelectric effect) and wave-like properties (as determined by Young’s double slit experiment). Principle of Complementary – states that to understand any particular experiment using light scientists must see either the wave theory or the particle theory of light but not both. Light has both wave ...
... photoelectric effect) and wave-like properties (as determined by Young’s double slit experiment). Principle of Complementary – states that to understand any particular experiment using light scientists must see either the wave theory or the particle theory of light but not both. Light has both wave ...
CH14 Self Assessment
... use delta notation appropriately calculate any variable in W = hfo calculate any variable in Ek max = Vstop q relate SI units to physics quantities: W in eV or in J perform graphical analysis of photoelectric effect observations -use y-intercept of maximum kinetic energy as a function of frequency o ...
... use delta notation appropriately calculate any variable in W = hfo calculate any variable in Ek max = Vstop q relate SI units to physics quantities: W in eV or in J perform graphical analysis of photoelectric effect observations -use y-intercept of maximum kinetic energy as a function of frequency o ...
PHYS 305 - Modern Physics (Spring 2016) Department of Physics
... Modern Physics is a undergraduate level course which is intended for students, who have already studied introductory level physics. This course provides a basic introduction to better understanding of special relativity, Quantum mechanics, and applications of quantum theory to: atomic and molecular ...
... Modern Physics is a undergraduate level course which is intended for students, who have already studied introductory level physics. This course provides a basic introduction to better understanding of special relativity, Quantum mechanics, and applications of quantum theory to: atomic and molecular ...
Quantum Computing
... the intensity of the light, the maximum energy of the electrons was not dependent on the intensity. Moreover, classical theory predicted that the photoelectric current should not depend on the frequency of the light and that there should be a time lag between the reception of light on the surface an ...
... the intensity of the light, the maximum energy of the electrons was not dependent on the intensity. Moreover, classical theory predicted that the photoelectric current should not depend on the frequency of the light and that there should be a time lag between the reception of light on the surface an ...
Historical Introduction to the Elementary Particles 2
... • Thus a “hole in the sea” would function as an ordinary particle with positive energy and positive charge. Dirac at first hoped that these holes might be protons, but it was soon apparent that they had to carry the same mass as the electron itself 2000 times too light to be a proton. No such parti ...
... • Thus a “hole in the sea” would function as an ordinary particle with positive energy and positive charge. Dirac at first hoped that these holes might be protons, but it was soon apparent that they had to carry the same mass as the electron itself 2000 times too light to be a proton. No such parti ...
Document
... (a) Calculate the three lowest energy levels for an electron trapped in an infinitely deep square well potential of width = 0.1 nm (about the diameter of a hydrogen atom in its ground state). (b) If a photon were emitted when the electron jumps from the n = 2 state to the n = 1 state, what would ...
... (a) Calculate the three lowest energy levels for an electron trapped in an infinitely deep square well potential of width = 0.1 nm (about the diameter of a hydrogen atom in its ground state). (b) If a photon were emitted when the electron jumps from the n = 2 state to the n = 1 state, what would ...
poster
... Many students seem to default to realist interpretations of quantum phenomena when instructors are not explicit in promoting alternatives to a realist perspective. Student perspectives are not necessarily robust, and often vary by context. Instructors who wish to address questions of ontology sh ...
... Many students seem to default to realist interpretations of quantum phenomena when instructors are not explicit in promoting alternatives to a realist perspective. Student perspectives are not necessarily robust, and often vary by context. Instructors who wish to address questions of ontology sh ...
Electromagnetic waves
... • harmful for human body, cause skin burn, can cause skin cancer • can ionize atoms → mutagen • are absorbed by ozone layer mostly X-rays : • are used by doctors • can interact with matter • are produced by the sudden stoppage of the high speed charged particle by the use of metal target which absor ...
... • harmful for human body, cause skin burn, can cause skin cancer • can ionize atoms → mutagen • are absorbed by ozone layer mostly X-rays : • are used by doctors • can interact with matter • are produced by the sudden stoppage of the high speed charged particle by the use of metal target which absor ...
TR-3
... depends on the value of the light frequency f and not on the intensity. The existence of a threshold frequency is completely inexplicable in classical theory. Classical theory would predict that for extremely low light intensities, a long time would elapse before any one electron could obtain suffic ...
... depends on the value of the light frequency f and not on the intensity. The existence of a threshold frequency is completely inexplicable in classical theory. Classical theory would predict that for extremely low light intensities, a long time would elapse before any one electron could obtain suffic ...
1 Introduction - Caltech High Energy Physics
... • Correlating with the increase in nodes, the higher the excited state, the greater the spatial frequency of the wave function oscillations. This corresponds to higher momenta, as expected from the deBroglie relation. • Each wave function has a region around y = 0 of oscillatory behavior, in which t ...
... • Correlating with the increase in nodes, the higher the excited state, the greater the spatial frequency of the wave function oscillations. This corresponds to higher momenta, as expected from the deBroglie relation. • Each wave function has a region around y = 0 of oscillatory behavior, in which t ...
Document
... (2) The fuel used is natural uranium which is mostly uranium 235. (3) The chain reaction is kept under control by rods of cadmium, whose going in reduces the reaction rate. (4) The thick concrete shield is used to slow down the speed of neutrons. 16. Given P = 0.0030 m., Q = 2.40 m and R = 3,000 m., ...
... (2) The fuel used is natural uranium which is mostly uranium 235. (3) The chain reaction is kept under control by rods of cadmium, whose going in reduces the reaction rate. (4) The thick concrete shield is used to slow down the speed of neutrons. 16. Given P = 0.0030 m., Q = 2.40 m and R = 3,000 m., ...
02_ECEN
... 1. Plane waves have a constant amplitude (A) over all space and time – the only thing that changes with time and position is the phase. Hence plane waves are trivially easy to “propagate” – just make the appropriate phase change. 2. We will show, when we cover wave propagation, that the Fourier Tran ...
... 1. Plane waves have a constant amplitude (A) over all space and time – the only thing that changes with time and position is the phase. Hence plane waves are trivially easy to “propagate” – just make the appropriate phase change. 2. We will show, when we cover wave propagation, that the Fourier Tran ...
27-3 A Photoelectric Effect Example
... 27.4. For frequencies above the threshold frequency, the slopes are identical because the slope of this section of the graph is Planck’s constant. Also, the new line has a yintercept that is more negative, consistent with the larger work function in that case. ...
... 27.4. For frequencies above the threshold frequency, the slopes are identical because the slope of this section of the graph is Planck’s constant. Also, the new line has a yintercept that is more negative, consistent with the larger work function in that case. ...
Harmonic oscillator - Vibration energy of molecules 1. Definitions
... The optical spectroscopy, i.e. the interaction of electromagnetic radiation with atoms or molecules, is one of the most important experimental techniques for investigating the structure of atoms and molecules. Indeed, essential informations are given by the absorption properties of molecules in di↵e ...
... The optical spectroscopy, i.e. the interaction of electromagnetic radiation with atoms or molecules, is one of the most important experimental techniques for investigating the structure of atoms and molecules. Indeed, essential informations are given by the absorption properties of molecules in di↵e ...