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Edition 1st

Spectroscopy

Variant i Interactive tutorial lecture      

This tutorial helps students relate spectral lines, photon energies, and the electron energy levels of hydrogen.

Topics   Modern and quantum / Modern physics: representations, discrete spectra, electron energy levels, frequency & wavelength, light (or shadow), photon energy, and spectroscopy

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Materials

Materials by the UW team

  • Clicker Questions OnlyTiIP_ITL_1stEd_SPC_tutorial_slides_learning_catalytics.pdfVerification required
  • Instructor GuideTiIP_ITL_1stEd_SPC_instructor-guide.pdfVerification required
  • PretestTiIP_ITL_1stEd_SPC_pretest.pdfVerification required
  • Pretest for LMSTiIP_ITL_1stEd_SPC_pretest_qti.pdfVerification required
  • Exam QuestionsTiIP_ITL_1stEd_SPC_exam.pdfVerification required
  • Equipment ListTiIP_ITL_1stEd_SPC_equipment.pdf


Clicker Questions Only
PDF of clicker questions used in Instructor Slides

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Tutorial details

Section I: Discrete spectra

Question A presents a student dialogue discussing the spectrum from a hydrogen lamp. Questions B-D guide students through calculating photon energies and relating them to differences in electron energy levels. They then revisit the student dialogue from the start of the tutorial. The Balmer series is briefly discussed.

Section II: Pattern of lines in discrete spectra

Students begin by calculating energy ratios for the electron energy levels and devise a relationship between $E_1$ and $E_n$. Students consider the limits of the line spectrum on both the right and left side. They then determine the energy transition corresponding to a given wavelength and find the location of the associated line on the spectrum.

In Questions H-I, students consider a line spectrum from an unknown gas. They determine the minimum number of energy levels to produce the given spectrum and sketch an energy level diagram that is consistent with the line spectrum.

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Prerequisites

Students need to be familiar with the energy of a photon.

Equipment

List

  • tutorial instructor slides
  • tutorial student slides or worksheet

Discussion

Coming Soon! We hope to release the discussion section on each tutorial by the end of September 2024.