CBSE Class 10 Science MCQs – Online Practice Test (Basic Level)

Relevant Titles

The Human Eye & Colourful World MCQs | CBSE Class 10 Science Quiz
CBSE Class 10 Chapter 10 MCQs — Human Eye & Optics
60-Minute CBSE Class 10 Online Test: Eye and Colourful World MCQs
NCERT Aligned Human Eye MCQs for CBSE Class 10
Online Practice Test with Automatic Scoring — Class 10 Optics MCQs
Chapter Overview
The CBSE Class 10 Science Human Eye MCQs provide an extensive, NCERT-aligned practice resource for Chapter 10: The Human Eye and the Colourful World. These objective questions cover the anatomy of the eye, vision defects and their correction, prism refraction, dispersion of light, atmospheric refraction, and scattering phenomena. This 60-minute online practice test includes automatic scoring and instant per-question feedback so students immediately learn correct answers and brief explanations. Carefully mapped to the CBSE board examination syllabus, the quiz strengthens understanding of ray diagrams, lens formulae and optical applications. Consistent practice boosts accuracy, exam timing and confidence ahead of board exams.
Tags
CBSE Class 10 Science MCQs, Human Eye Colourful World MCQs, Online Practice Test Automatic Scoring, NCERT Aligned Class 10 MCQs, CBSE Board Exam Practice MCQs, Per-question Feedback Instant Scoring, Class 10 Physics Online Quiz, 60-minute Timed MCQ Practice
Keywords
CBSE Class 10 human eye MCQs online, Chapter 10 prism dispersion MCQ practice, NCERT based eye and colourful world MCQs, 60 minute CBSE science optics quiz automatic scoring, per-question feedback Class 10 science MCQs, free CBSE Class 10 optics MCQ test, Class 10 atmospheric refraction practice questions, CBSE board exam MCQs with instant scoring

Chapter 10: The Human Eye and the Colourful World

1. The receptor organ for vision in humans is the:

2. Which parts of the eye are primarily responsible for focusing light on the retina?

3. Light-sensitive cells are located in the:

4. Which structure controls the size of the pupil?

5. The ability of the eye to focus on nearby and distant objects is called:

6. Which defect of vision is corrected by a concave lens?

7. Hyperopia (farsightedness) is corrected by which lens?

8. Loss of lens elasticity with age causing difficulty in near vision is called:

9. A triangular glass prism splits white light into its constituent colours due to:

10. In dispersion of white light by a prism, which colour is deviated the most?

11. The apparent early rising of the sun before actual sunrise is due to:

12. The blue colour of the clear daytime sky is primarily due to:

13. At sunset the Sun appears red because:

14. Which phenomenon is responsible for the reddening of Sun during sunrise and sunset?

15. The functioning of a camera is most similar to which human organ?

16. For a normal young human eye, the near point (least distance of distinct vision) is approximately:

17. The power of a lens is defined as the reciprocal of its focal length measured in:

18. Parallel rays of light incident on a convex lens converge to the:

19. The thin lens formula relates object distance (u), image distance (v), and focal length (f) as:

20. When white light passes from air into water, which of the following remains unchanged?

21. Clouds appear white because sunlight is scattered by water droplets which are:

22. Which of the following is NOT an optical instrument?

23. Why does a prism produce a spectrum from white light?

24. In a pinhole camera, the image formed on the screen is:

25. In myopia (short-sightedness), where is the image formed relative to the retina?

26. Hypermetropic eye forms image where relative to the retina?

27. Blurred vision due to irregularly curved cornea is called:

28. A lens of focal length 0.5 m has power:

29. Which phenomenon explains why different colours are produced by a prism?

30. Which colour is scattered most by the atmosphere making the sky appear blue?

31. Light refracts because its speed:

32. The image formed on the retina by the eye lens is:

33. The nerve that transmits visual information from retina to brain is:

34. Looking through a small hole provides a clearer image because it:

35. Formation of a rainbow involves which of the following?

36. When dispersed colours from a prism are recombined, we get:

37. Which of the following is NOT a method used to correct refractive errors?

38. Chromatic aberration in lenses is due to:

39. Unit of optical power is:

40. Which image can be obtained on a screen?

41. Myopia is usually caused by:

42. For a convex lens, the principal focus is the point where:

43. Rayleigh scattering intensity is inversely proportional to which power of wavelength approximately?

44. Which optical element can magnify objects for close inspection?

45. A point source of light produces a sharp image in a pinhole camera because:

46. Which of the following is NOT a common cause of refractive errors?

47. Which of the following causes colour fringes in images formed by simple lenses?

48. The dark circular opening in the centre of the iris is called the:

49. Which lens is used as a simple magnifier?

50. When light goes from air into glass, its speed:

51. In bright light, the pupil of the eye:

52. Which camera part performs a role similar to the pupil of the eye?

53. The optic disc (blind spot) lacks which cells?

54. A convex lens produces a real inverted image when the object is placed:

55. In a secondary rainbow, colours appear in reverse order compared to the primary because:

56. Refraction at curved surfaces is important to understand behaviour of:

57. Atmospheric refraction affects apparent positions of stars by making them appear:

58. Why do distant mountains sometimes appear bluish?

59. A person who cannot see distant objects clearly is called:

60. Optical fibre communication relies on which optical principle?

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