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Light: Mirrors and Lenses — Study Plan

CBSE · Class 8 · Science

A step-by-step study plan for Light: Mirrors and Lenses, CBSE Class 8 Science: what to learn first, what to practise and when to revise.

41 questions68 flashcards5 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. Spherical Mirrors, 2. Images Formed by Mirrors, 3. Uses of Concave and Convex Mirrors.

2
Day 3

Practise

Solve the textbook exercises and extra practice questions. There are 41 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 Light: Mirrors and Lenses after a week. Use flashcards for quick recall and try past exam questions on this chapter.

What to Focus On

  • Spherical mirrors have spherical reflecting surfaces.
  • Concave mirrors curve inward and converge light.
  • Convex mirrors curve outward and diverge light.
  • Concave mirror images change with distance.
  • Close object in a concave mirror gives an erect, enlarged image.
  • Farther object in a concave mirror gives an inverted image.
  • Concave mirrors are useful for concentrating light.
  • Dentists use concave mirrors for enlarged images.
  • Reflecting telescopes use a large concave mirror.

Common Mistakes to Avoid

All mirrors behave like plane mirrors and always form an erect image of the same size.

A convex mirror can form an inverted or enlarged image.

Spherical mirrors are made by slicing a hollow glass sphere.

Memory Tips

Spherical mirrors are mirrors whose reflecting surfaces are spherical

Concave mirror has reflecting surface curved inward

Convex mirror has reflecting surface curved outward

Concave mirror image changes with object distance

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Frequently Asked Questions

What are the important topics in Light: Mirrors and Lenses for CBSE Class 8 Science?
Key topics in Light: Mirrors and Lenses include Spherical Mirrors, Images Formed by Mirrors, Uses of Concave and Convex Mirrors, Laws of Reflection. Study these first, then practise questions on each for Class 8 exams.
How should I revise Light: Mirrors and Lenses for Class 8 exams?
Learn the core ideas first, then work through the 41 practice questions on Light: Mirrors and 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.

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