ch29 - Chapter 29 Particles and Waves 29.1 Wave Particle...

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Unformatted text preview: Chapter 29 Particles and Waves 29.1 Wave Particle Duality When a beam of electrons is used in a Youngs double slit experiment, a fringe pattern occurs, indicating interference effects. Waves can exhibit particle-like characteristics, and particles can exhibit wave-like characteristics. 29.2 Blackbody Radiation and Plancks Constant All bodies, no matter how hot or cold, continuously radiate electromagnetic waves. Electromagnetic energy is quantized. , 3 , 2 , 1 , = = n nhf E s J 10 626 . 6 34 =- h Plancks constant frequency 29.3 Photons and the Photoelectric Effect Electromagnetic waves are composed of particle-like entities called photons. hf E = h p = 29.3 Photons and the Photoelectric Effect Experimental evidence that light consists of photons comes from a phenomenon called the photoelectric effect. 29.3 Photons and the Photoelectric Effect When light shines on a metal, a photon can give up its energy to an electron in that metal. The minimum energy required to remove the least strongly held electrons is called the work function....
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This note was uploaded on 02/20/2010 for the course PHYSC 210 taught by Professor Uscinski during the Summer '09 term at American.

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ch29 - Chapter 29 Particles and Waves 29.1 Wave Particle...

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