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Last week
- Sources of natural radiation and the Geiger counter
Monday, February 12
- Types of radioactive decay and writing decay equations
- Alpha decay and U-238
- Carbon-14 formation in our atmosphere n + N-14 --> C-14 + p
- Carbon-14 decay and beta minus product
- Nitrogen-12 decay and beta plus product
Tuesday, February 13
- Interference formula and its derivation showing sin theta is about tan theta.
- Diffraction example problem with speaker and radio waves and laser at different widths.
Wednesday, February 14
- Some more diffraction examples.
Thursday, February 15
- P. 781 first problem set due
- Go over problems
Tuesday, January 23
- P. 781, 10-14 due
- Go over problems
Wednesday, January 24
- Transmission interference example with IR and windows
- Stealth technology
- Interference by reflection at thin films
Thursday, January 25
- Wave gap interference examples and account for n if not vacuum
Friday, February 2
- P. 815; 35-39, 46 due
Monday, February 5 - 2 hour delay
- Test will be Wednesday due to 2 hour delay today
- Intro. to Atomic & Nuclear energy
- Forms of radioactive decay - alpha, beta, gamma
- Sources of radiation and geiger counter demonstrations
Tuesday, February 6
- Writing nuclear decay equations
- Alpha particles as helium nucleii
- Beta particles as electrons and positrons (with neutrinos)
- Gamma decay as photons from the nucleus
Wednesday, February 28
- P. 958; 15-17, 19-21 due
- Go over problems together