Human Eye & Colourful World: Class 10 Previous Year Questions

Human Eye & Colourful World questions asked in CBSE board exams

Repeated questions first. Open the free app to see each question as it appeared in the paper, with its marking scheme.

1. A thin beam of white light falls on a face of a glass prism and a spectrum is obtained on a screen. Which of the following options is the correct sequence of colours from top to bottom on the screen ? 1 (A) Red, Green, Yellow, Violet, Blue (B) Red, Yellow, Gre…
   Board 20263 marksAssertion-Reason
2. A person is unable to read a book placed closer than 1 meter from his eyes. Identify the defect of vision in his eyes. Draw the ray diagrams to show the defect of vision and its correction.
   Board 20265 markslong answer
3. Assertion (A): When rays of white light pass through a prism, on emerging they give spectrum of seven colours. Reason (R): It is due to the scattering of light that red light bends minimum and violet light bends the maximum.
   Board 20263 marksAssertion-Reason
4. A person allowed a narrow beam of white light from the sun to enter a dark room through a small aperture and placed a glass prism in its path in such a manner that the beam falls on the face AB of the prism as shown in the figure. A screen S is placed on the o…
   Board 20254 markscase-based
5. Assertion (A) : Myopic eye cannot see distant objects distinctly. Reason (R) : For the correction of myopia converging lenses of appropriate power are prescribed by eye-surgeons.
   Board 20241 markAssertion-Reason
6. Study the diagram given below and answer the questions that follow : (i) Name the defect of vision represented in the diagram. Give reason for your answer. (ii) List two causes of this defect. (ii) With the help of a diagram show how this defect of vision is c…
   Board 20243 marksshort answer
7. The lens system of human eye forms an image on a light sensitive screen, which is called as : (a) Cornea (b) Ciliary muscles (c) Optic nerves (d) Retina
   Board 20241 markMCQ
8. Assertion (A) : The rainbow is a natural spectrum of sunlight in the sky. Reason (R) : Rainbow is formed in the sky when the sun is overhead
   Board 20241 markAssertion-Reason
9. Consider the following statements in the context of human eye : 13. (a) The diameter of the eye ball is about 2.3 cm. (b) Iris is a dark muscular diaphragm that controls the size of the pupil. (c) Most of the refraction for the light rays entering the eye occu…
   Board 20241 markMCQ
10. Assertion (A) : A person suffering from myopia cannot see the distant objects clearly. Reason (R) : A converging lens is used for the correction of myopic eye as it can form real as well as virtual images of the objects placed in front of it.
    Board 20231 markAssertion-Reason
11. Give reasons for the following : 31. (a) Danger signals installed at airports and at the top of tall buildings are of red colour. (b) The sky appears dark to the passengers flying at very high altitudes. (c) The path of a beam of light passing through a colloi…
    Board 20233 marksshort answer
12. (a) A narrow beam XY of white light is passing through a glass prism ABC as shown in the diagram : Trace it on your answer sheet and show the path of the emergent beam as observed on the screen PQ. Name the phenomenon observed and state its cause. OR (b) It is…
    Board 20232 marksshort answer
13. Two statements are given - one labelled Assertion (A) and the other labelled Reason (R). Read the statements carefully and choose the option that correctly describes statements A and R. Assertion (A): Stars would not twinkle if we viewed them from the moon. Re…
    CBSE practice 2021-221 markAssertion-Reason
14. Savera passed a beam of white light through a series of equilateral prisms as shown. 5 (a) What colour(s) will be seen on the screen? (b) Copy the diagram above and draw the beam entering Prism 1 and emerging from Prism 3 and falling on the screen. (c) Name al…
    CBSE practice 2023-245 markslong answer
15. A person is unable to see objects distinctly placed within 75 cm from his eyes. a) Name the defect of vision the person is suffering from. b) List its two possible causes. c) Calculate the power of the lens needed to correct this defect. Assume that the near p…
    CBSE practice 2023-245 markslong answer
16. *There is no change in the Question Paper Design and Assessment Pattern for Academic Session 2026-27. 39 Attempt either option A or B. A. I. What is meant by accommodation of the human eye? II. What is the near point of a normal eye and what does it signify? I…
    Sample paper 2026-274 marksshort answer
17. White light is passed through a prism to yield a spectrum. (a) The ray of which color will show the maximum angle of deviation and which one will show the least angle of deviation? (b) A blue-coloured ray is passed through a glass prism. What will be the colou…
    CBSE practice 2022-232 marksshort answer
18. The image below depicts light being split by a prism into different colours. This was first observed by Isaac Newton. What would this observation help us to understand? A. the cause for sunspots B. how X-rays are formed C. the cause for rainbows D. how the Sun…
    CBSE practice 2021-221 markMCQ
19. The path of light rays passing through a glass prism is BEST represented by __________. A. only P B. only R C. either Q or S D. either P or R
    CBSE practice 2021-221 markMCQ
20. A hunter sees a fish which is swimming in clear water as shown in the figure. To hit the fish, he should take aim adjusting for the fish's motion and __________________. A. exactly at the depth where the fish appears to be B. a little below where the fish appe…
    CBSE practice 2021-221 markMCQ

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