Set 10: Light - Reflection, Refraction, Dispersion, and the Human Eye
Introduction: This final set covers a wide range of topics including the normal eye's far point, scattering, dispersion through prisms, vision defects, and the properties of light. It serves as a complete revision set for the chapter.
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PHYSICS | Human Eye-J
📝 Questions: 50
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Q1. The normal far point of the eye is:
Q2. At noon, the Sun appears white because:
Q3. The Sun is visible about how many minutes before actual sunrise?
Q4. In a prism, the emergent ray is:
Q5. White light is a mixture of:
Q6. Which colour bends the most in a prism?
Q7. The iris controls:
Q8. Sky appears dark in space because:
Q9. Danger signals are red because red light:
Q10. Presbyopia occurs due to:
Q11. Stars twinkle because they are:
Q12. The Sun appears earlier at sunrise due to:
Q13. Image formed on retina is:
Q14. A prism has how many refracting surfaces?
Q15. Newton proved that white light is composed of colours using:
Q16. A ray of light bends towards the normal when it travels from:
Q17. The pupil appears black because:
Q18. Hypermetropia can be corrected by:
Q19. Twinkling of stars is caused by:
Q20. The human eye lens is:
Q21. The sequence VIBGYOR represents:
Q22. Which phenomenon explains blue sky and red sunset?
Q23. Loss of accommodation occurs mainly due to:
Q24. The eye adjusts focus by changing:
Q25. Apparent flattening of the Sun at sunrise is due to:
Q26. Myopia can be corrected by:
Q27. Which colour bends the least in a prism?
Q28. A rainbow is formed due to:
Q29. The band of colours obtained from white light is called:
Q30. Shorter wavelengths are scattered:
Q31. Blue colour of the sky is due to scattering of:
Q32. Refraction of light occurs due to change in:
Q33. Longer wavelengths are scattered:
Q34. Dispersion of light occurs because:
Q35. When light travels from air to glass, its speed:
Q36. Light travels fastest in:
Q37. A rainbow is always seen:
Q38. Planets do not twinkle because they appear as:
Q39. Tyndall effect is observed in:
Q40. Blue colour has:
Q41. Scattering is maximum for light having:
Q42. Red colour has:
Q43. The angle between the incident ray and emergent ray in a prism is called:
Q44. The least distance of distinct vision is about:
Q45. Water droplets act like:
Q46. Retina acts as a:
Q47. Scattering of light by colloidal particles is called:
Q48. Which of the following is NOT a defect of vision?
Q49. The angle between the incident ray and the normal is called:
Q50. The angle between the two refracting surfaces of a prism is called:
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