Slide 1
... Particle in a box of size a can never be at rest (e.g. has zero K.E) but has a minimal KE Kave (its zero-point energy) We will formally re-derived this result again when solving for the Schrodinger equation of this system (see later). ...
... Particle in a box of size a can never be at rest (e.g. has zero K.E) but has a minimal KE Kave (its zero-point energy) We will formally re-derived this result again when solving for the Schrodinger equation of this system (see later). ...
Scale, structure and behaviour
... It is the fact that electrons can only exist at discrete energy levels that prevents them from spiraling into the nucleus, as classical models predict. This quantization of energy, along with some other atomic properties that are quantized, give quantum mechanics its name. In 1901, Max Planck publis ...
... It is the fact that electrons can only exist at discrete energy levels that prevents them from spiraling into the nucleus, as classical models predict. This quantization of energy, along with some other atomic properties that are quantized, give quantum mechanics its name. In 1901, Max Planck publis ...
Infrared Spectrometry
... in the time domain signal can now be detected. I(t) = ∫ I(ν) cos2πtdν This cos Fourier transform finds the frequencies and intensities which fit the time domain spectrum using a computer algorithm. For a continuous source (used in FTIR), all waves constructively interfere when δ = 0. The signal deca ...
... in the time domain signal can now be detected. I(t) = ∫ I(ν) cos2πtdν This cos Fourier transform finds the frequencies and intensities which fit the time domain spectrum using a computer algorithm. For a continuous source (used in FTIR), all waves constructively interfere when δ = 0. The signal deca ...
Physics 428 Spring 2015 Syllabus Instructor:
... develop a clear understanding of how matter (atoms) and light (photons) interact, how lasers operate and what are their essential components and how to quantitatively analyze a laser’s performance, and what are the main types of lasers that exist. The students should be able to demonstrate their fam ...
... develop a clear understanding of how matter (atoms) and light (photons) interact, how lasers operate and what are their essential components and how to quantitatively analyze a laser’s performance, and what are the main types of lasers that exist. The students should be able to demonstrate their fam ...
Ch 7 Lecture Notes
... - In 1913 he proposed a new model of the atom that attempted to better explain atomic line spectra and disproved J.J. Thompson’s “Plum Pudding” model. - Electrons move in circular ____________ around the nucleus. - The closer the orbit to the nucleus, the lower its ______________. - Each orbit has a ...
... - In 1913 he proposed a new model of the atom that attempted to better explain atomic line spectra and disproved J.J. Thompson’s “Plum Pudding” model. - Electrons move in circular ____________ around the nucleus. - The closer the orbit to the nucleus, the lower its ______________. - Each orbit has a ...
المحاضرة الثانية اساسيات الكم
... If we apply the Bohr model to the H atom, the radius of each allowed circular orbit can be determined from the equation below. The origin of this expression lies in the centrifugal force acting on the electron as it moves in its circular orbit; for the orbit to be maintained, the centrifugal force m ...
... If we apply the Bohr model to the H atom, the radius of each allowed circular orbit can be determined from the equation below. The origin of this expression lies in the centrifugal force acting on the electron as it moves in its circular orbit; for the orbit to be maintained, the centrifugal force m ...
Introduction to Quantum Mechanics: Homework #1 (Due by Sep
... 6. Consider a grey body whose emissivity ε (λ) = 0.6 at all λ. How much energy is emitted from the grey body at T =1500 K per unit surface area in 1 sec? 7. Based on the Einstein’s model for the heat capacity Cv of a solid, show that 1) Cv→0 as T→0 and 2) Cv = 3R at high T. 8. Suppose one performs p ...
... 6. Consider a grey body whose emissivity ε (λ) = 0.6 at all λ. How much energy is emitted from the grey body at T =1500 K per unit surface area in 1 sec? 7. Based on the Einstein’s model for the heat capacity Cv of a solid, show that 1) Cv→0 as T→0 and 2) Cv = 3R at high T. 8. Suppose one performs p ...
LEP 5.1.03 -15 Franck-Hertz experiment with Ne-tube
... angular momentum of the electron is an integral multiple of h/2p, i.e. n*h/2p, where n is an integer and h is Planck’s constant. Bohr’s picture of electrons in discrete states with transitions among those states producing radiation whose frequency is determined by the energy differences between stat ...
... angular momentum of the electron is an integral multiple of h/2p, i.e. n*h/2p, where n is an integer and h is Planck’s constant. Bohr’s picture of electrons in discrete states with transitions among those states producing radiation whose frequency is determined by the energy differences between stat ...
introduction - Stanford Synchrotron Radiation Lightsource
... the LCLS undulator for optimal operation or parameter values. These elements include (and are discussed later): a) planar take-off mirrors (if these were 300 m farther downstream they would need to be substantially longer, up to 1 meter/facet); b) refractive lenses (whether solid state or gaseous, s ...
... the LCLS undulator for optimal operation or parameter values. These elements include (and are discussed later): a) planar take-off mirrors (if these were 300 m farther downstream they would need to be substantially longer, up to 1 meter/facet); b) refractive lenses (whether solid state or gaseous, s ...
Poster PDF (1.5mb)
... the stored gate photon lifetime of (2.1 ± 0.1) μs, we can recover the gate photon into the original mode by reading out the stored photon by adiabatically re-applying the control beam. The gate photon is stored as a collective excitation [3], which is maintained until a source photon is scattered in ...
... the stored gate photon lifetime of (2.1 ± 0.1) μs, we can recover the gate photon into the original mode by reading out the stored photon by adiabatically re-applying the control beam. The gate photon is stored as a collective excitation [3], which is maintained until a source photon is scattered in ...
Unit 4 Study Guide - Key - Effingham County Schools
... 5. _Wavelength____________ (λ) is the distance between corresponding points on adjacent waves. What is its unit? _m, cm, or nm_________ 6. _Frequency____________ (ν) is defined as the number of waves that pass a given point in a specific time. What is its unit? _waves/second or hertz(Hz)___________ ...
... 5. _Wavelength____________ (λ) is the distance between corresponding points on adjacent waves. What is its unit? _m, cm, or nm_________ 6. _Frequency____________ (ν) is defined as the number of waves that pass a given point in a specific time. What is its unit? _waves/second or hertz(Hz)___________ ...
Chapter 7
... Light is electromagnetic radiation. A type of energy embodies in oscillating electric and magnetic fields ...
... Light is electromagnetic radiation. A type of energy embodies in oscillating electric and magnetic fields ...
Regents questions
... Arranging the elements by atomic weight leads to an order slightly different from that in a modern periodic table, where the arrangement is by atomic number. Why does this happen? ...
... Arranging the elements by atomic weight leads to an order slightly different from that in a modern periodic table, where the arrangement is by atomic number. Why does this happen? ...
Experiment Note - Spectrum Techniques
... scintillation probe and 137Cs source facing each other at some distance above the work surface and away from any solid objects as shown in Figure 4-a. You should place the source far enough away from the detector so that the multichannel analyzer yields a clean spectrum. You should be able to see th ...
... scintillation probe and 137Cs source facing each other at some distance above the work surface and away from any solid objects as shown in Figure 4-a. You should place the source far enough away from the detector so that the multichannel analyzer yields a clean spectrum. You should be able to see th ...
Flame Test Lab
... Introduction: According to the Bohr theory of an atom, electrons may occupy only specific energy levels. When an atom absorbs sufficient energy, an electron can “jump” to a higher energy level. Higher energy levels tend to be less stable, however, and if a lower energy level is available, the electr ...
... Introduction: According to the Bohr theory of an atom, electrons may occupy only specific energy levels. When an atom absorbs sufficient energy, an electron can “jump” to a higher energy level. Higher energy levels tend to be less stable, however, and if a lower energy level is available, the electr ...
Development of a Multi-Channel Integrated Circuit for Use in Nuclear
... 3) Three separate integration regions with independent control of charging rate in each region which can be used for high-quality pulse shape discrimination (PSD). 4) Built-in high-quality timing circuitry 5) Multiple (currently, three) triggering modes 6) Analog multiplicity output indicating numbe ...
... 3) Three separate integration regions with independent control of charging rate in each region which can be used for high-quality pulse shape discrimination (PSD). 4) Built-in high-quality timing circuitry 5) Multiple (currently, three) triggering modes 6) Analog multiplicity output indicating numbe ...
vocab chap 6
... packed nucleus and that atoms are mostly empty space; also discovered the proton ...
... packed nucleus and that atoms are mostly empty space; also discovered the proton ...
EBB 424E Semiconductor Devices and Optoelectronics
... What is Optoelectronics? "Optoelectronics, the alliance of optics and electronics, [is] one of the most exciting and dynamic industries of the information age. As a strategic enabling technology, the applications of optoelectronics extend throughout our everyday lives, including the fields of compu ...
... What is Optoelectronics? "Optoelectronics, the alliance of optics and electronics, [is] one of the most exciting and dynamic industries of the information age. As a strategic enabling technology, the applications of optoelectronics extend throughout our everyday lives, including the fields of compu ...
Components of Optical Instruments, Cont…
... several interference filters are necessary to, for example, cover the visible range of the spectrum. This is not convenient as we would have to interchange filters according to wavelength of interest. To overcome this problem: a wedge machined dielectric was used. The dielectric in this case has dif ...
... several interference filters are necessary to, for example, cover the visible range of the spectrum. This is not convenient as we would have to interchange filters according to wavelength of interest. To overcome this problem: a wedge machined dielectric was used. The dielectric in this case has dif ...
Goal: To understand how light can be used to
... creates a difference gravitational energy, so to does the distance from a nucleus. • However, there are only certain specific allowed energy states in an atom. ...
... creates a difference gravitational energy, so to does the distance from a nucleus. • However, there are only certain specific allowed energy states in an atom. ...
E k
... Si Conduction-Band Structure in wave vector k-space (Constant-Energy Surfaces in k-space)Effective mass approximation: Kinetic energy ...
... Si Conduction-Band Structure in wave vector k-space (Constant-Energy Surfaces in k-space)Effective mass approximation: Kinetic energy ...
X-ray fluorescence
X-ray fluorescence (XRF) is the emission of characteristic ""secondary"" (or fluorescent) X-rays from a material that has been excited by bombarding with high-energy X-rays or gamma rays. The phenomenon is widely used for elemental analysis and chemical analysis, particularly in the investigation of metals, glass, ceramics and building materials, and for research in geochemistry, forensic science and archaeology.