Unit 14 · Waves, Sound, and Physical Optics
Chapter 14.2
Boundaries, Polarization, and Light as a Wave
A pulse hitting a fixed end comes back upside down; hitting a free end it comes back upright. Light passing two crossed polarizing filters does not come through at all — and that tells you what light is.
in preparation · lesson 20 of 27
By the end
- 01Predict the reflected and transmitted waves when a pulse meets a boundary between two media
- 02Explain polarization of transverse waves and the intensity a polarizer lets through
- 03Describe electromagnetic waves as oscillating electric and magnetic fields that need no medium
- 04Order the electromagnetic spectrum and the visible colors by wavelength