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Study Plan

Lenses — Study Plan

Maharashtra Board · Class 10 · Science

A step-by-step study plan for Lenses, Maharashtra Board Class 10 Science: what to learn first, what to practise and when to revise.

44 questions36 flashcards6 formulas & key relations5 concepts

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Study Plan

1
Day 1–2

Learn the Theory

Read the textbook chapter carefully. Note down definitions, formulas and key ideas. Focus on: 1. Types of Lenses and Basic Terms, 2. Ray Rules and Image Formation, 3. Sign Convention, Lens Formula, Magnification, and Power.

2
Day 3

Practise

Solve the textbook exercises and extra practice questions. There are 44 questions available for this chapter.

3
Day 4

Revise & Test

Revise key points without looking at your notes. Take a practice quiz and mark weak areas for another pass.

4
Day 7

Spaced Revision

Come back to Lenses after a week. Use flashcards for quick recall and try past exam questions on this chapter.

What to Focus On

  • A lens is a transparent medium bound by two surfaces.
  • A ray of light gets refracted twice while passing through a lens.
  • A lens with both surfaces spherical has two centres of curvature.
  • Convex lens is thicker at centre than edges.
  • Concave lens is thinner at centre than edges.
  • Focal length of a convex lens is positive.
  • When the incident ray is parallel to the principal axis, the refracted ray passes through the principal focus.
  • When the incident ray passes through the principal focus, the refracted ray is parallel to the principal axis.
  • When the incident ray passes through the optical centre, it passes without changing its direction.

Common Mistakes to Avoid

A convex lens is thinner at the centre and a concave lens is thicker at the centre.

A concave lens can sometimes form a real image on a screen if the object is far away.

A convex lens always forms a real and inverted image.

Memory Tips

Convex lens definition

Concave lens definition

Convex lens is converging lens

Concave lens is divergent lens

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Frequently Asked Questions

What are the important topics in Lenses for Maharashtra Board Class 10 Science?
Key topics in Lenses include Types of Lenses and Basic Terms, Ray Rules and Image Formation, Sign Convention, Lens Formula, Magnification, and Power, Human Eye and Vision. Study these first, then practise questions on each for the Maharashtra Board Class 10 board exam.
How should I revise Lenses for the Maharashtra Board Class 10 board exam?
Learn the core ideas first, then work through the 44 practice questions on Lenses. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Lenses

All Maharashtra Board Class 10 Science Study Plan

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