Physics › Section R · Electromagnetic waves and geometric optics › Topic R.7
Image formation by mirrors
A bathroom mirror, a magnifying make-up mirror and the bulging security mirror in a shop each form a different kind of image. Curved mirrors obey the same equations as lenses, so once the sign convention is clear, every mirror image can be predicted.
In this topic
- Mirrors everywhere
- The plane mirror
- Spherical mirrors and f = R/2
- When the sphere is not enough
- Ray diagrams in words
- Same equations, mirror signs
- Worked example: a real image from a concave mirror
- Worked example: a make-up mirror
- Worked example: a convex wing mirror
- Concave and convex compared
- Common mistakes to avoid
- Key takeaways
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