Refraction through Lenses

Physics (Science Paper 1) · Chapter 5 · 2. Light

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Your path through this chapter

1
Visual lesson Beta
1. Part 1: Lenses, rays and images16 slides
2. Part 2: Lens formula, magnification and power15 slides
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Notes Beta
5 sections with key terms, formulas and exam tips.
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Flashcards Beta
30 cards for quick recall of key terms and facts.
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Practice
63 board-style questions with instant checks: Multiple choice 17, Short answer 11, Numerical 9, Assertion and reason 8.
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5
Chapter test Free
Short and long chapter tests in board pattern, with results and analysis.
- Chapter test (long) — Refraction through Lenses · 40 marks · 60 min
- Chapter test (short) — Refraction through Lenses · 20 marks · 30 min
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Convex and concave lenses; lens as a set of prisms; centre of curvature, principal axis, optical centre, foci, focal plane, focal length
Principal (construction) rays and images formed by a convex lens for different object positions
Images formed by a concave lens
Sign convention, lens formula 1/v - 1/u = 1/f and magnification (direct numerical problems)
Power of a lens in dioptre; simple microscope (magnifying glass); applications of lenses