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Announcements 4/4/12

Prepare for your physics reading quiz on blackbody radiation formulas and theories - including key figures like Plank, Rayleigh & Jeans, and Stefan & Boltzmann. Test your knowledge now!

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Announcements 4/4/12

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  1. Announcements 4/4/12 • Prayer • Exam 3 ends Friday night • Done with liquid helium experiments… regular office hours resume Speed Bump

  2. Announcement from Dr. Hart

  3. Reading Quiz • Who theoretically derived the correct blackbody radiation formula (energy emitted at various frequencies) • Curie & Weiss • Plank • Rayleigh & Jeans • Sommerfeldt • Stefan & Boltzmann

  4. Reading Quiz • What critical assumption did Plank make to produce the correct formula? • continuous energy • quantized energy • long wavelength limit • short wavelength limit

  5. Reading Quiz • Whose law says that the amount of emitted blackbody radiation is proportional to T4? • Curie & Weiss • Plank • Rayleigh & Jeans • Sommerfeldt • Stefan & Boltzmann

  6. Energy of all photons with freq. f

  7. Waves in a “box” • Stefan-Boltzmann law • Plank radiation law

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