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Light - Reflection and Refraction

CBSE · Class 10 · Science

Quick revision notes for Light - Reflection and Refraction — CBSE Class 10 Science. Key concepts, formulas, and definitions for last-minute revision.

67 questions20 flashcards5 concepts

Key Topics to Revise

1

Nature of Light and Reflection

  • Light travels in straight lines in a homogeneous medium
  • Objects become visible when light reflects from them and enters our eyes
  • Highly polished surfaces like mirrors reflect most of the light falling on them
2

Spherical Mirrors

  • Concave mirror: reflecting surface curves inward toward center of sphere
  • Convex mirror: reflecting surface curves outward away from center of sphere
  • Key terms: Pole (P), Center of curvature (C), Principal axis, Principal focus (F), Focal length (f)
3

Image Formation by Spherical Mirrors

  • Concave mirror can form both real and virtual images depending on object position
  • Convex mirror always forms virtual, erect, and diminished images
  • Real images can be obtained on screen; virtual images cannot
4

Refraction of Light

  • Refraction occurs when light passes obliquely from one transparent medium to another
  • Light bends toward normal when going from rarer to denser medium
  • Light bends away from normal when going from denser to rarer medium

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Full Notes

Key Concepts

Two fundamental laws govern reflectionSpherical mirrors have curved reflecting surfacesThe mirror formula 1/f = 1/vRefraction occurs when light passes fromThe refractive index (n) of

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Frequently Asked Questions

What are the important topics in Light - Reflection and Refraction for CBSE Class 10 Science?

Light - Reflection and Refraction covers several key topics that are frequently asked in CBSE Class 10 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.

Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision 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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All 13 chapters — CBSE Class 10 Science Revision Notes