Reflection

Mirrors and images

An interactive lesson with 7 steps, about 6 minutes: you predict, drag and solve, with instant feedback on every answer. It runs in your browser and needs JavaScript.

What you’ll learn

• Angle of incidence = angle of reflection, both measured from the normal.
• A flat mirror makes a virtual image as far behind it as the object is in front.
• Corner reflectors send light straight back to where it came from.

Steps

1. Full-length mirror
2. The law of reflection
3. Angle to the surface
4. Where is the image?
5. Half your height
6. Two mirrors at right angles
7. Corner reflector