PPT-Wave Properties of Particles

Looking back it may seem odd that two decades passed between the 1905 discovery of the particle properties of waves and the 1924 speculation that particles might show wave behavior It is one thing however to suggest a revolutionary concept to explain otherwise mysterious data and quite another to suggest an equally revolutionary concept without a strong experimental mandate The latter is just what Louis de Broglie did in 1924 when he proposed that moving objects have wave as well as particle characteristics So different was the scientific climate at the time from that around the turn of the century that de Broglies ideas soon received respectful attention whereas the earlier quantum theory of light of Planck and Einstein had been largely ignored despite its striking empirical support The existence of de Broglie waves was experimentally demonstrated by 1927 and the duality principle they represent provided the starting point for Schrödingers successful development of quantum mechanics in the previous year. a short study of high school level understanding . By: Layla Quinones. New York University Department of Teaching and Learning. Background Information. Studies have shown that college students have difficulty describing wave phenomena due to misconceptions. of . Matter. Chapter. 6. 6.1 Matter. Objectives. Define matter and describe its major properties.. Explain how the arrangement of particles in a substance may determine its properties.. Classify kinds of matter based on their properties.. . M. Sc Physics, 3. rd. Semester. . Dr. . Arvind. Kumar . Physics Department. NIT . Jalandhar. e.mail. : . iitd.arvind@gmail.com. https://sites.google.com/site/karvindk2013/. Contents of Course:. A Physics MOSAIC. MIT Haystack Observatory RET. Revised 2011. Background Image from Wikipedia, Roger . McLassus. , Creative Commons . Reflection. When a wave encounters a boundary, it will be. at least partially reflected off this boundary.. thermal equilibrium. The experimental basis of quantum mechanics. The black body problem - Planck’s quantization postulate. The photoelectric effect - Quantization of EM radiation. The Compton effect - Light is a particle. How do matter and energy interact when waves are generated?. What are the three main types of mechanical waves?. What are properties of waves?. Essential Questions:. Waves. A disturbance that transfers energy from place to place. Waves transfer energy!. A wave does not carry matter . It only moves matter as it travels through it.. Waves. Compression (longitudinal) waves . are waves in which the particles of the medium move in a direction . Ex. In the ocean, waves travel across but the water only oscillates up and down returning to their original position. . Pulse - a single wave from a disturbance. Ex. Throwing a rock in water (a pulse travels in all directions from the point of contact). Why are we able to see?. Answer: . Because there is light.. And…what is light?. Answer: . Light is a wave.. So…what is a wave?. Answer: . A wave is a disturbance that carries energy from place to place. . amplitude, frequency, wavelength, speed, phase, phase difference, . c . = . f . λ. . f . = . 1/. T . Phase difference may be measured as angles (radians and degrees) or as fractions of a cycle. . . A wave is a disturbance in a medium that carries energy without a net movement of particles.. Ocean . waves are formed as wind blows across the surface of the ocean, creating small ripples, which eventually become waves with increasing time and distance. . Andrew Kennedy. University of Notre Dame. Ning. Lin. Princeton University. NSF CMMI 1314612. NSF CMMI 1314649. Project Overview. Two major goals:. To collect perishable data on residential building damage levels, failure modes, and building characteristics (elevation, specific connections/members failed, age. inert gas condensation.. K. Coughlin, L. Zhai, R. Kraft, M.M. Patterson. University of Wisconsin–Stout, Menomonie, WI 54751. Introduction. The purpose of this research is to observe and study the effects of temperature variations on the formation of and magnetic properties of Iron/Platinum (FePt) nanoparticles. We hope to find properties that will suggest that FePt particles can be used for magnetic recording in computer storage devices or as a replacement to currently used rare earth metals.. BY. D. PEGU. ASSOCIATE PROFESSOR, DEPTT. OF PHYSICS. HAFLONG GOVT. COLLEGE, HAFLONG. COURSE . CONTENTS:. Introduction, Definition, length scale . Importance of . Nanoscale. and Technology . History of Nanotechnology, .