Fa08_7C_9

Fa08_7C_9 - Quiz 7 9am I1 I2 q I3 1 Physics 7C Fa 2008 Quantum Mechanics Light as a particle Energy of light Energy levels in atoms Outline Quiz

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1 Quiz 7: 9am +q I 2 I 1 I 3
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Physics 7C Fa 2008 Quantum Mechanics Light as a particle Energy of light Energy levels in atoms
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3 Outline Quiz Introduction to quantum mechanics Extremely brief overview of major models in the course (will be posted online if we don’t reach it) Final Exam Logistics Course reviews
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4 Quiz 7: 7:30am +q I 3 I 1 I 2
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5 Quantum Mechanics Model It can be non-intuitive We can make sense of it using two models: Particle Wave
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6 Quantum Mechanics Model Light and matter both behave like waves sometimes and like particles other times Confining waves to an area leads to standing wave patterns For bound matter, this results in only certain available energy levels Bound matter can gain or lose energy only between the available levels To conserve energy, usually a photon is absorbed or emitted with the correct energy (frequency)
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7 Experimental Evidence: Photons Electrons in metal: Free to move Bound to metal Think of as binding energy Goal: free from metal Shine light to add energy. How can we get high energy light?! Laser Metal v
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8 Experimental Evidence: Photons Binding Energy KE elec Light Energy Laser Metal v
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9 Energy: Wave Model What makes a high energy wave? a) Big wavelength b) Big amplitude c) High wave speed In light, what would this look like? What do we observe if we increase the energy as the wave model suggests?
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10 Energy: Wave Model High energy wave Large amplitude Large amplitude means more intensity More intensity means brighter
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This note was uploaded on 05/30/2009 for the course PHY 7C taught by Professor Mahmud during the Fall '08 term at UC Davis.

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Fa08_7C_9 - Quiz 7 9am I1 I2 q I3 1 Physics 7C Fa 2008 Quantum Mechanics Light as a particle Energy of light Energy levels in atoms Outline Quiz

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