Chapter 11
Light
Ray diagrams show where light travels and help explain where an image appears.
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Reflection and plane mirrors
Measure angles from a normal and locate a plane-mirror image using reflected rays.
Refraction and refractive index
Trace light across boundaries and calculate angles and speed using the stated media.
Converging action and focal length
Identify a principal focus and measure focal length from the lens centre.
Real and virtual images
Interpret supplied diagrams and observations to describe image size, orientation and screen formation.