# Electromagnetic Waves and Visible Light: Revision

> This section is electromagnetic-wave and visible-light revision: the toolkit photoelectric and spectra use. Treat EM radiation as transverse waves that travel at c in a vacuum, use c=fλ, list the…

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## More in Optical Phenomena and Properties of Materials

- [The Photoelectric Effect](https://www.hlayiso.com/grade-12/physical-sciences/notes/optical-phenomena-and-properties-of-materials/the-photoelectric-effect) — Next section
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## Frequently asked questions

### What will I learn in "Electromagnetic Waves and Visible Light: Revision"?

This section covers Electromagnetic Waves and Visible Light: Revision as part of Optical Phenomena and Properties of Materials in Grade 12 Physical Sciences. You'll find clear explanations, worked examples, and key definitions aligned to the CAPS curriculum.

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Continue with the next section in Optical Phenomena and Properties of Materials, or test your understanding with the interactive quiz linked to this section.

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