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Syllabus

The Human Eye and the Colourful World — Syllabus

CBSE · Class 10 · Science

What The Human Eye and the Colourful World covers in CBSE Class 10 Science: 4 topics, for the 2026-27 session. Part of the CBSE Class 10 Science syllabus.

56 questions72 flashcards5 concepts

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A detailed cross-section of the human eye showing all major parts and their labels.
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4 Topics · CBSE Class 10 Science · 2026-27

Topics in The Human Eye and the Colourful World

1

1. Structure and Working of the Human Eye

  • The eyeball is approximately spherical and has a diameter of about 2.3 cm.
  • Light enters the eye through the cornea, a thin transparent membrane forming the front bulge of the eyeball.
  • Most refraction of light entering the eye occurs at the outer surface of the cornea.
2

2. Power of Accommodation and Vision Limits

  • The ability of the eye lens to adjust its focal length is called accommodation.
  • When ciliary muscles are relaxed, the lens becomes thin and its focal length increases.
  • This helps in seeing distant objects clearly.
3

3. Defects of Vision and Their Correction

  • There are three common refractive defects of vision: myopia, hypermetropia, and presbyopia.
  • Myopia is near-sightedness.
  • A person with myopia can see nearby objects clearly but cannot see distant objects distinctly.
4

4. Prism, Dispersion and Rainbow

  • The angle between the two lateral faces of a prism is called the angle of the prism.
  • At the first surface of a prism, light bends towards the normal.
  • At the second surface, light bends away from the normal.

Key Concepts

Central concept: Human eye, vision, and optical phenomena

Human eyeAccommodationNear point and far pointDefects of visionCorrection of vision defectsPrism and dispersionRainbowAtmospheric refraction

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Frequently Asked Questions

What are the important topics in The Human Eye and the Colourful World for CBSE Class 10 Science?
Key topics in The Human Eye and the Colourful World include Structure and Working of the Human Eye, Power of Accommodation and Vision Limits, Defects of Vision and Their Correction, Prism, Dispersion and Rainbow. Study these first, then practise questions on each for the CBSE Class 10 board exam.
How should I revise The Human Eye and the Colourful World for the CBSE Class 10 board exam?
Learn the core ideas first, then work through the 56 practice questions on The Human Eye and the Colourful World. 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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All CBSE Class 10 Science Syllabus

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