PPT-Photoelectric Effect

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. 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 Particles. . INTRODUCTION . to. Elementary Particle Physics. Fundamental building blocks of. which all matter is composed:. . Elementary Particles. . electron. Introduction- quantum physics. Particles. of light . . PHOTONS. The photoelectric effect. Photocells & intrusion detection devices. The Bohr atom. emission & absorption of radiation. LASERS. 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. FINAL . EXAM. 1. FINAL EXAM. : Wednesday December 17, 12:30 P - 2:30 P in LR-1 VAN . FE. covers . Lectures 23 – 36. The study guide, formulas, and practice final exam questions are posted on the Exam Information Link below.. 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. . Introduction- quantum physics. Particles. of light . . PHOTONS. The photoelectric effect. Photocells & intrusion detection devices. The Bohr atom. emission & absorption of radiation. LASERS. Key Observations. What are some of the notable observations you made yesterday regarding the variables that would affect the current produced by the photoelectric effect?. Photon Energy. Energy of Photons is dependent on the frequency of the light.. 5.1 Light & Quantized Energy. Wrapped Box. PURPOSE. Make observations using all the senses except sight.. PROCEDURE. Read and complete the lab safety form. Obtain a wrapped box from your instructor. 2/8 Day 8: . Questions?. Review SR. Intro to Quantum, Photoelectric Effect. Next: . Exam I (In-class). Photoelectric Effect. “Quantum . Mechanics is the greatest intellectual accomplishment . of the . Properties of X rays: . Travel in straight line,. Undergo reflection: follow laws of reflection,. Undergo refraction: follow laws of refraction,. Ionize the gas/ medium through which they pass,. INTERACTIONS. Course Instructor. : . Dr. Rajesh Kumar Neogy . . (rajesh.neogy@gmail.com). (Assistant Professor). Department of Physics.