Lenses — Class 10 Maharashtra SSC Science revision notes
A 3-page visual revision sheet for Lenses, written for Class 10 Maharashtra SSC Science. Formulas, diagrams and the traps that cost marks, laid out to be read the night before rather than the term before. Free, and it opens inside CapCompass.
What this Lenses sheet covers
- Convex lens
- Concave lens
- Focal length
- The two kinds of lens
- The three rays that locate an image
- The formulas, and the sign convention
- the lens formula
- magnification from distances
- magnification from sizes
- power of a lens, f in metres
- lenses in contact, powers add
- Sign convention
- The sign convention, stated once
- Images formed by a convex lens
- Locating an image
- Reading the answer's signs
- Power of a lens
- Dioptre
- Defects of vision
- Power, and lenses in use
- Symbols in this chapter
- Traps that cost marks
- Tricks that save time
How CapCompass uses this sheet
These notes are not a standalone PDF. CapCompass plans Science chapter by chapter against your real exam dates and free hours, and when the plan reaches Lenses the sheet opens inside the study block itself — at the page covering the sub-topic that block is on, with the timer still running. Revision arrives at the moment the plan says revise, instead of having to be gone looking for.
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