Difference between revisions of "PChem322 s21 w1"
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====Sec 1.4 The Photoelectric Effect==== | ====Sec 1.4 The Photoelectric Effect==== | ||
| − | [[Media: | + | :[[Media:HW1_Photoelectric.pdf|Photoelectric Effect worksheet]] |
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Latest revision as of 15:20, 1 February 2021
Monday Jan 25, 2021
- - Welcome
- - Attendance
- - Syllabus/Expectations
Weds, Jan 27, 2021
Chapter 1: From Classical to Quantum Mechanics
Intro, Sec 1.1, Sec 1.2
Read
Sec 1.3 Blackbody Radiation
- - All objects are essentially "hot" (considering the concept of absolute zero).
- - All (hot) objects radiate light (electromagnetic radiation).
- - The wavelength/frequency of the light emitted from a (hot) object is related to the temperature of the object.
- - We can make a graph of wavelength (λ) or frequency (ν) as a function of temp (T), but at any given temperature light emitted has a range of λ or ν. So instead we develop some expressions using the term spectral density (ρ - rho).
Thurs, Jan 28, 2021
Meet in CSB 378
PLEASE make an entry in your lab notebook
Activity 1: Mathematica
- - Basic Plot statement
- Plot[x^2, {x, 0, 10}]
- - Plotting 2 function on one graph
- Plot[{x^2, X^3}, {x, 0, 10}]
- - "Manipulate" a Plot
- Manipulate[Plot[{a*x^2, a*x^3}, {x, 0, 10}], {a, 1, 2}] ...with y-axis range defined
- Manipulate[Plot[{a*x^2, a*x^3}, {x, 0, 10}, PlotRange -> {0, 2000}], {a, 1, 2}]
- Challenge: Reproduce the Figure 1.2 above for Plank's Blackbody Radiation (spectral density vs frequency)
- - First try and use the "Manipulate" function, then do the plot of 5 functions.
- - See here for the function (slightly different than book) --> Plank's Law (Wikipedia)
Activity 2:Emission Spectra
- Demonstration
- Excel worksheet
Activity 3
- NOVA: Beyond the Elements
- Time 5:00 pm
