PDF-Photoelectric

wwwfargocontrolscom 732 3893376 Fax 732 5423553 49 18 mm Stainless Steel DCFEATURES Stainless steel housing Programmable output NPNPNP Sensitivity adjustment standard LED function indica. Features J J JJJJ J JJQJJJJ JJ J QJJJ QJQ JJ J QJJ JJ QJJJJ JQQJ JJQJJJ Q QJJJJJJJQ JJ J The InnovairFlex D2 JQJ QJJJJQQJJ QJ JJQJ QJJQ QJJJJJJQ JJ JQJ QJ Q JJ Q J JJQJJJJJ J QQJJ JQJJJQJJ JJJJ JJQJJQJ JJQJJJJJ JJJJ JJJJJ Q JJQJJJJ JQQJJQJ J Photo 1 OBJECT: To verify the photon theory of light as applied to the photoelectric effect. EQUIPMENT LIST: RCA 934 phototube, two Fluke 37 multimeters, Hewlett - Packard 6235A Triple Output Po 802 Singapore: +65 6779 9091fa-info@sg.pepperl-fuchs.comUSA: +1 330 486 0001fa-info@us.pepperl-fuchs.comGermany: +49 621 776 0fa-info@de.pepperl-fuchs.comPepperl+Fuchs Groupwww.pepperl-fuchs.comSubjec The Remarkable Science (and Life) of Albert Einstein. 1879-1955. Two especially good Einstein books. Einstein: His Life and Universe. . . Walter Isaacson (Simon & Schuster, 2007). Einstein 1905: The Standard of Greatness. Bell Ringer . – Tues, 12/16. WDYS in the picture below? Write down observations for the text as well as the picture. . WDYT: what does the green team and ultraviolet team mean? . Pg. 840 in the blue Active Physics Book. Duct Smoke Detection Photoelectric vs. Ionization Technology Duct smoke detectors can use either photoelectric or ionization detection technologies. However, only one is the NFPA- recommended techno Contents:. Einstein’s proposed experiment. Solving photoelectric problems. Example 1. | . Example 2. Whiteboard. Photon vs wave theory. Waves Photons. Color. Brightness. Energy per photon changes. Introduction and aims. The development of Quantum theory in the early 20. th. century drastically changed our views on the nature of light, allowing us to consider it as a particle as well as a wave. . Introduction- quantum physics. Particles. of light . . PHOTONS. The photoelectric effect. Photocells & intrusion detection devices. The Bohr atom. emission & absorption of radiation. LASERS. Particular and Wavelike. Kristine Lister. Early Findings 1670’s. Christian Huygens: points on a wave as new sources. Isaac Newton: corpuscular theory. Young’s Double Slit Diffraction. Late 1800’s to Early 1900’s. The electron. An indivisible quantity of charge that orbits the nucleus of the atom. The Electron. The idea that there is a natural unit of electricity inside the atom was suggested in 1874 by Irishman G.J. . Before threshold frequency no kinetic energy is present. After threshold frequency the relationship is linear. E. k. =. hν. . -. . Φ. y. = mx + b. When light strikes a metal surface, electrons are ejected.. Light. Electron. Metal. Nucleus. Photoelectric Effect. More Light. Electron. Metal. Nucleus. Electron. If the threshold frequency has been reached, increasing the intensity (amplitude) only increases the number of the electrons ejected.. Introduction- quantum physics. Particles. of light . . PHOTONS. The photoelectric effect. Photocells & intrusion detection devices. The Bohr atom. emission & absorption of radiation. LASERS.