Class 10 Science — Chapter 10: The Human Eye and the Colourful World
66 practice questions · 22 Easy · 22 Medium · 22 Hard
Practise Class 10 Science Chapter 10, "The Human Eye and the Colourful World", with 66 NCERT-aligned multiple-choice questions. The set is split into 22 Easy, 22 Medium and 22 Hard questions, so you can warm up on the fundamentals and then push into the exam-level problems that separate top scorers in CBSE Board exams and the JEE & NEET foundation years.
"The Human Eye and the Colourful World" is one of the chapters where concept clarity across physics, chemistry and biology basics really pays off. Each MCQ on this chapter is timed and uses exam-grade marking (+2 correct, −1 wrong, 0 skipped), training the same accuracy-under-pressure that real papers demand. Every question carries a short explanation, so a wrong answer becomes a quick lesson rather than a dead end — the fastest way to close gaps before a test.
Use this chapter as targeted revision: attempt the Easy set first to confirm your basics on The Human Eye and the Colourful World, then move to Medium and Hard to test application and problem-solving. Your accuracy, streaks and XP save automatically, and the chapter feeds into your overall Class 10 Science mastery score. A few sample questions are shown below; sign in free to practise all 66.
Key concepts: The Human Eye and the Colourful World (Class 10 Science)
This chapter explains how the human eye works, its common defects and their correction, and natural phenomena caused by refraction and scattering of light.
- The human eye
- Cornea, iris, pupil, lens and retina. The power of accommodation lets the eye lens change focal length; the near point is about 25 cm.
- Defects of vision
- Myopia (short-sight) corrected by a concave lens; hypermetropia (long-sight) by a convex lens; presbyopia with age.
- Dispersion of light
- A prism splits white light into its seven colours (spectrum) because each colour bends by a different amount.
- Atmospheric refraction
- Causes the twinkling of stars and the apparent early sunrise / late sunset.
- Scattering of light
- The Tyndall effect: shorter (blue) wavelengths scatter most, making the sky blue; at sunrise/sunset the sky looks red.
Key formulas — The Human Eye and the Colourful World
💡 Exam tips for The Human Eye and the Colourful World
- Myopia = clear near, blurry far → concave lens; hypermetropia = clear far, blurry near → convex lens.
- The sky is blue and sunsets are red for the same reason: blue scatters more, so only red light survives the long slanting path at sunset.
Sample questions
Image in human eye is formed on:
Retina is the screen-equivalent at back of eye.
Splitting of white light into colours by a prism is:
Prism disperses light because refractive index varies with wavelength.
Sky appears blue because of:
Rayleigh scattering — blue scatters most.
The Human Eye and the Colourful World — FAQs
What are the key concepts in Class 10 Science The Human Eye and the Colourful World?+
This chapter explains how the human eye works, its common defects and their correction, and natural phenomena caused by refraction and scattering of light. Key ideas include The human eye, Defects of vision, Dispersion of light, Atmospheric refraction, Scattering of light.
What does Class 10 Science Chapter 10 (The Human Eye and the Colourful World) cover on XamBaaz?+
It covers 66 NCERT-aligned MCQs on "The Human Eye and the Colourful World" — 22 Easy, 22 Medium and 22 Hard — each with a timed quiz and an instant explanation, suitable for CBSE Board exams and the JEE & NEET foundation years.
Are these "The Human Eye and the Colourful World" questions free to practise?+
Yes — sign in with Google to practise "The Human Eye and the Colourful World" free. Full unlimited access is ₹999/year (limited-time launch price), with no per-chapter charges.
How should I revise "The Human Eye and the Colourful World" for the exam?+
Start with the Easy quiz to confirm your fundamentals, then attempt Medium and Hard for application-level practice. Review each explanation, retry the questions you miss, and track your accuracy on this chapter until it is consistently high.
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