Read and download the CBSE Class 10 Science The Human Eye and the Colourful World Sure Shot Questions B. Designed for 2025-26, this advanced study material provides Class 10 Science students with detailed revision notes, sure-shot questions, and detailed answers. Prepared by expert teachers and they follow the latest CBSE, NCERT, and KVS guidelines to ensure you get best scores.
Advanced Study Material for Class 10 Science Chapter 10 The Human Eye and the Colourful World
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Class 10 Science Chapter 10 The Human Eye and the Colourful World Notes and Questions
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THE HUMAN EYE AND THE COLOURFUL WORLD
MULTIPLE CHOICE QUESTIONS
1. A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power
(a) + 0.5 D (b) – 0.5 D
(c) + 0.2 D (d) – 0.2 D
2. A student sitting on the last bench can read the letters written on the blackboard but is not able to read the letters written in his text book. Which of the following statements is correct?
(a) The near point of his eyes has receded away
(b) The near point of his eyes has come closer to him
(c) The far point of his eyes has come closer to him
(d) The far point of his eyes has receded away
3. A prism ABC (with BC as base) is placed in different orientations. A narrow beam of white light is incident on the prism as shown in below Figure. In which of the following cases, after dispersion, the third colour from the top corresponds to the colour of the sky?
(a) (i) (b) (ii)
(c) (iii) (d) (iv)
4. At noon the sun appears white as
(a) light is least scattered
(b) all the colours of the white light are scattered away
(c) blue colour is scattered the most
(d) red colour is scattered the most
5. Which of the following phenomena of light are involved in the formation of a rainbow?
(a) Reflection, refraction and dispersion
(b) Refraction, dispersion and total internal reflection
(c) Refraction, dispersion and internal reflection
(d) Dispersion, scattering and total internal reflection
6. Twinkling of stars is due to atmospheric
(a) dispersion of light by water droplets
(b) refraction of light by different layers of varying refractive indices
(c) scattering of light by dust particles
(d) internal reflection of light by clouds
7. The clear sky appears blue because
(a) blue light gets absorbed in the atmosphere
(b) ultraviolet radiations are absorbed in the atmosphere
(c) violet and blue lights get scattered more than lights of all other colours by the atmosphere
(d) light of all other colours is scattered more than the violet and blue colour lights by the atmosphere
(a) Red light moves fastest
(c) All the colours of the white light move with the same speed
(d) Yellow light moves with the mean speed as that of the red and the violet light
9. The danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because among all other colours, the red light
(a) is scattered the most by smoke or fog
(b) is scattered the least by smoke or fog
(c) is absorbed the most by smoke or fog
(d) moves fastest in air
10. Which of the following g phenomena contributes significantly to the reddish appearance of the sun at sunrise or sunset?
(b) Scattering of light
(c) Total internal reflection of light
(d) Reflection of light from the earth
11. The bluish colour of water in deep sea is due to
(a) the presence of algae and other plants found in water
(b) reflection of sky in water
(c) scattering of light
(d) absorption of light by the sea
12. When light rays enter the eye, most of the refraction occurs at the
(a) crystalline lens
(c) iris
13. The focal length of the eye lens increases when eye muscles
(a) are relaxed and lens becomes thinner
(b) contract and lens becomes thicker
(c) are relaxed and lens becomes thicker
(d) contract and lens becomes thinner
14. Which of the following statement is correct?
(a) A person with myopia can see distant objects clearly
(b) A person with hypermetropia can see nearby objects clearly
(c) A person with myopia can see nearby objects clearly
(d) A person with hypermetropia cannot see distant objects clearly
SHORT ANSWER QUESTIONS
15. Draw ray diagrams each showing (i) myopic eye and (ii) hypermetropic eye.
16. A student sitting at the back of the classroom cannot read clearly the letters written on the blackboard. What advice will a doctor give to her? Draw ray diagram for the correction of this defect.
17. How are we able to see nearby and also the distant objects clearly?
18. A person needs a lens of power –4.5 D for correction of her vision.
(a) What kind of defect in vision is she suffering from?
(b) What is the focal length of the corrective lens?
(c) What is the nature of the corrective lens?
19. How will you use two identical prisms so that a narrow beam of white light incident on one prism emerges out of the second prism as white light? Draw the diagram.
20. Draw a ray diagram showing the dispersion through a prism when a narrow beam of white light is incident on one of its refracting surfaces. Also indicate the order of the colours of the spectrum obtained.
21. Is the position of a star as seen by us its true position? Justify your answer.
22. Why do we see a rainbow in the sky only after rainfall?
23. Why is the colour of the clear sky blue?
24. What is the difference in colours of the Sun observed during sunrise/sunset and noon? Give explanation for each.
LONG ANSWER QUESTIONS
25. Explain the structure and functioning of Human eye. How are we able to see nearby as well as distant objects?
26. When do we consider a person to be myopic or hypermetropic? Explain using diagrams how the defects associated with myopic and hypermetropic eye can be corrected?
27. Explain the refraction of light through a triangular glass prism using a labelled ray diagram. Hence define the angle of deviation.
28. How can we explain the reddish appearance of sun at sunrise or sunset? Why does it not appear red at noon?
29. Explain the phenomenon of dispersion of white light through a glass prism, using suitable ray diagram.
30. How does refraction take place in the atmosphere? Why do stars twinkle but not the planets?
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Important Practice Resources for Class 10 Science
CBSE Class 10 Science Chapter 10 The Human Eye and the Colourful World Study Material
Students can find all the important study material for Chapter 10 The Human Eye and the Colourful World on this page. This collection includes detailed notes, Mind Maps for quick revision, and Sure Shot Questions that will come in your CBSE exams. This material has been strictly prepared on the latest 2026 syllabus for Class 10 Science. Our expert teachers always suggest you to use these tools daily to make your learning easier and faster.
Chapter 10 The Human Eye and the Colourful World Expert Notes & Solved Exam Questions
Our teachers have used the latest official NCERT book for Class 10 Science to prepare these study material. We have included previous year examination questions and also step-by-step solutions to help you understand the marking scheme too. After reading the above chapter notes and solved questions also solve the practice problems and then compare your work with our NCERT solutions for Class 10 Science.
Complete Revision for Science
To get the best marks in your Class 10 exams you should use Science Sample Papers along with these chapter notes. Daily practicing with our online MCQ Tests for Chapter 10 The Human Eye and the Colourful World will also help you improve your speed and accuracy. All the study material provided on studiestoday.com is free and updated regularly to help Class 10 students stay ahead in their studies and feel confident during their school tests.
Our advanced study package for Chapter Chapter 10 The Human Eye and the Colourful World includes detailed concepts, diagrams, Mind Maps, and explanation of complex topics to ensure Class 10 students learn as per syllabus for 2026 exams.
The Mind Maps provided for Chapter Chapter 10 The Human Eye and the Colourful World act as visual anchors which will help faster recall during high-pressure exams.
Yes, teachers use our Class 10 Science resources for lesson planning as they are in simple language and have lot of solved examples.
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