The Nature of Light · Waves and Optics

Spectroscopy

Using light spectra to identify elements and understand the composition of stars.

Key Questions

  1. 1How does the discrete nature of atomic energy levels explain the appearance of line spectra?
  2. 2What variables affect the shift in spectral lines observed from distant moving galaxies?
  3. 3How would an astrophysicist use absorption spectra to determine the chemical makeup of an exoplanet atmosphere?

ACARA Content Descriptions

AC9SPU14
Year: Year 12
Subject: Physics
Unit: The Nature of Light
Period: Waves and Optics

Suggested Methodologies

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