Set 9: Human Eye and Colourful World - Comprehensive Review
Introduction: This set provides a comprehensive review of the human eye, vision defects, atmospheric refraction, scattering, and dispersion. It covers key concepts from the entire chapter, making it ideal for revision.
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PHYSICS | Human Eye-I
📝 Questions: 50
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Q1. The sky appears blue mainly due to scattering by:
Q2. Light from the Sun near the horizon passes through:
Q3. Near the horizon, most of the blue light is:
Q4. The image formed by the human eye is formed on the:
Q5. In old age, the eye loses its power of:
Q6. Objects placed closer than the near point appear:
Q7. The eye lens changes its curvature due to:
Q8. A person suffering from myopia cannot see:
Q9. The sky appears dark to astronauts because:
Q10. Near the horizon, sunlight reaching our eyes is mainly of:
Q11. At sunrise, sunlight travels:
Q12. Stars appear as:
Q13. Dispersion occurs when light passes through:
Q14. Atmospheric scattering is more effective for:
Q15. The far point of a normal eye is:
Q16. Blue light has:
Q17. For a normal young adult, the near point is about:
Q18. Blue colour of the sky is caused by:
Q19. Myopia is also known as:
Q20. Scattering of light explains:
Q21. The phenomenon responsible for reddening of the Sun is:
Q22. The normal eye can see distant objects clearly when the image is formed:
Q23. The least distance of distinct vision is also called:
Q24. At noon, the Sun appears white because:
Q25. When object distance increases, the image distance in the eye:
Q26. Which defect requires convex lens correction?
Q27. Splitting of white light into its component colours is called:
Q28. A person suffering from hypermetropia cannot see:
Q29. The pupil appears black because:
Q30. In myopia, the image of distant objects is formed:
Q31. Hypermetropia is also known as:
Q32. Myopia is corrected using a:
Q33. The change in focal length of the eye lens is caused by:
Q34. Which part controls the amount of light entering the eye?
Q35. Light from the Sun overhead travels:
Q36. The function of retina is to:
Q37. In hypermetropia, the image of nearby objects is formed:
Q38. The ability of the eye to focus near and distant objects is called:
Q39. The Sun appears reddish at sunset because blue light is:
Q40. The reddish appearance of the Sun near horizon is due to:
Q41. Planets do not twinkle because they are:
Q42. Reddening of the Sun at sunrise and sunset is due to:
Q43. Stars twinkle due to:
Q44. Which colour is scattered most by air molecules?
Q45. The eye lens is:
Q46. Which defect requires concave lens correction?
Q47. Presbyopia occurs mainly due to:
Q48. Red light has:
Q49. Accommodation of the eye occurs by adjusting the:
Q50. Hypermetropia is corrected using a:
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