Chapter 11 – Human Eye and Colourful World – MCQs
Chapter 11 – Human Eye and Colourful World – MCQs (Part 1: Q1–Q25)
Q1. The human eye forms the image of an object at:
a) Cornea
b) Retina
c) Lens
d) Iris
✅ Answer: b) Retina
Explanation: Retina acts as a screen where real and inverted images are formed.
Q2. The transparent front part of the eye which refracts most of the light is:
a) Iris
b) Cornea
c) Pupil
d) Retina
✅ Answer: b) Cornea
Explanation: Cornea is responsible for most of the refraction in the human eye.
Q3. The coloured part of the human eye is called:
a) Retina
b) Iris
c) Cornea
d) Pupil
✅ Answer: b) Iris
Explanation: Iris controls the size of the pupil and gives the eye its colour.
Q4. The eye lens is held in position by:
a) Retina
b) Iris muscles
c) Ciliary muscles
d) Pupil
✅ Answer: c) Ciliary muscles
Explanation: Ciliary muscles adjust the focal length of the lens for clear vision.
Q5. The ability of the eye lens to adjust its focal length is called:
a) Reflection
b) Refraction
c) Accommodation
d) Power
✅ Answer: c) Accommodation
Explanation: Accommodation enables the eye to see both near and distant objects clearly.
Q6. The least distance of distinct vision for a normal human eye is:
a) 10 cm
b) 25 cm
c) 50 cm
d) 100 cm
✅ Answer: b) 25 cm
Explanation: Normal near point for the human eye is about 25 cm.
Q7. The maximum distance up to which the eye can see clearly is called:
a) Far point
b) Near point
c) Least distance
d) Accommodation
✅ Answer: a) Far point
Explanation: For a normal human eye, far point is infinity.
Q8. The persistence of vision of the human eye is about:
a) 1/10 second
b) 1/16 second
c) 1/25 second
d) 1/50 second
✅ Answer: b) 1/16 second
Explanation: Due to persistence of vision, films appear continuous.
Q9. Which part of the eye controls the amount of light entering the eye?
a) Lens
b) Cornea
c) Pupil
d) Retina
✅ Answer: c) Pupil
Explanation: Pupil regulates the amount of light entering the eye.
Q10. The defect in which a person cannot see distant objects clearly is:
a) Hypermetropia
b) Myopia
c) Presbyopia
d) Astigmatism
✅ Answer: b) Myopia
Explanation: Myopia or near-sightedness prevents clear vision of far objects.
Q11. Myopia can be corrected using:
a) Convex lens
b) Concave lens
c) Bifocal lens
d) Cylindrical lens
✅ Answer: b) Concave lens
Explanation: Concave lens diverges light rays to correct myopia.
Q12. The defect in which a person cannot see nearby objects clearly is:
a) Myopia
b) Hypermetropia
c) Presbyopia
d) Astigmatism
✅ Answer: b) Hypermetropia
Explanation: Hypermetropia or far-sightedness prevents clear vision of near objects.
Q13. Hypermetropia can be corrected using:
a) Concave lens
b) Convex lens
c) Bifocal lens
d) Contact lens
✅ Answer: b) Convex lens
Explanation: Convex lens converges rays to focus on retina.
Q14. Presbyopia usually occurs due to:
a) Weakening of ciliary muscles
b) Excess curvature of cornea
c) Lengthening of eyeball
d) Shortening of eyeball
✅ Answer: a) Weakening of ciliary muscles
Explanation: With age, muscles weaken and accommodation reduces.
Q15. The splitting of white light into seven colours is called:
a) Reflection
b) Dispersion
c) Refraction
d) Scattering
✅ Answer: b) Dispersion
Explanation: Dispersion occurs when light splits into its constituent colours.
Q16. The band of seven colours obtained by dispersion is called:
a) Spectrum
b) Rainbow
c) Prism effect
d) Mirage
✅ Answer: a) Spectrum
Explanation: Spectrum consists of VIBGYOR colours.
Q17. The rainbow is formed due to:
a) Refraction only
b) Dispersion and refraction
c) Dispersion, refraction, and reflection
d) Total internal reflection only
✅ Answer: c) Dispersion, refraction, and reflection
Explanation: Rainbow forms due to dispersion, refraction, and internal reflection in water droplets.
Q18. The colour of the sky appears blue due to:
a) Reflection of light
b) Dispersion of light
c) Scattering of light
d) Refraction of light
✅ Answer: c) Scattering of light
Explanation: Shorter blue wavelengths are scattered more than red.
Q19. The red colour of the Sun at sunrise and sunset is due to:
a) Reflection
b) Refraction
c) Scattering of light
d) Dispersion
✅ Answer: c) Scattering of light
Explanation: Blue light is scattered away, leaving red light visible.
Q20. The twinkling of stars is due to:
a) Scattering of light
b) Refraction of light
c) Dispersion of light
d) Reflection of light
✅ Answer: b) Refraction of light
Explanation: Atmospheric refraction causes stars to twinkle.
Q21. Planets do not twinkle because:
a) They are nearer
b) They are bigger
c) They emit their own light
d) Both a and b
✅ Answer: d) Both a and b
Explanation: Being close and large, planets’ light is steadier.
Q22. Danger signals are red because:
a) Red light travels fastest
b) Red light scatters the least
c) Red light is attractive
d) Red is the first colour in spectrum
✅ Answer: b) Red light scatters the least
Explanation: Red light travels long distances with minimal scattering.
Q23. The phenomenon responsible for the blue colour of water in deep sea is:
a) Reflection
b) Dispersion
c) Absorption and scattering
d) Refraction
✅ Answer: c) Absorption and scattering
Explanation: Water absorbs red and scatters blue light.
Q24. Which scientist first explained the dispersion of light by a prism?
a) Huygens
b) Maxwell
c) Newton
d) Faraday
✅ Answer: c) Newton
Explanation: Sir Isaac Newton explained that white light is composed of seven colours.
Q25. The atmospheric refraction phenomenon causes:
a) Advance sunrise and delayed sunset
b) Rainbow formation
c) Blue sky
d) Mirage
✅ Answer: a) Advance sunrise and delayed sunset
Explanation: Refraction of sunlight in atmosphere makes the Sun visible before it rises and after it sets.
Human Eye and Colourful World – MCQs (Part 2: Q26–Q50)
Q26. The eye defect in which a person cannot see both near and far objects clearly is:
a) Myopia
b) Hypermetropia
c) Presbyopia
d) Astigmatism
✅ Answer: c) Presbyopia
Explanation: Presbyopia is age-related due to loss of flexibility of ciliary muscles.
Q27. Which lens is used to correct presbyopia?
a) Convex lens
b) Concave lens
c) Bifocal lens
d) Cylindrical lens
✅ Answer: c) Bifocal lens
Explanation: Bifocal lenses correct both myopia and hypermetropia in presbyopia patients.
Q28. The part of the eye that controls the size of the pupil is:
a) Cornea
b) Retina
c) Iris
d) Lens
✅ Answer: c) Iris
Explanation: Iris regulates pupil size to control light entry.
Q29. The condition of long-sightedness is also known as:
a) Myopia
b) Hypermetropia
c) Presbyopia
d) Astigmatism
✅ Answer: b) Hypermetropia
Explanation: Hypermetropia = far-sightedness (cannot see near objects clearly).
Q30. The retina contains two types of cells which are:
a) Rods and cones
b) Neutrons and rods
c) Iris and cones
d) Cones and nerves
✅ Answer: a) Rods and cones
Explanation: Rods detect light intensity, cones detect colours.
Q31. Which colour is deviated the least by a prism?
a) Red
b) Violet
c) Green
d) Yellow
✅ Answer: a) Red
Explanation: Red has the longest wavelength and least deviation.
Q32. Which colour is deviated the most by a prism?
a) Blue
b) Violet
c) Yellow
d) Green
✅ Answer: b) Violet
Explanation: Violet has the shortest wavelength and maximum deviation.
Q33. The scattering of light is inversely proportional to:
a) λ²
b) λ³
c) λ⁴
d) λ
✅ Answer: c) λ⁴
Explanation: Rayleigh scattering law → scattering ∝ 1/λ⁴.
Q34. The blue colour of the sky is due to:
a) Refraction
b) Dispersion
c) Scattering
d) Reflection
✅ Answer: c) Scattering
Explanation: Shorter blue wavelengths scatter more.
Q35. The danger signals are red because:
a) Red light travels slowest
b) Red light scatters least
c) Red light is absorbed easily
d) Red light is brighter
✅ Answer: b) Red light scatters least
Explanation: Red light travels longer distances with minimal scattering.
Q36. The power of a lens is expressed in:
a) Watt
b) Joule
c) Dioptre
d) Lux
✅ Answer: c) Dioptre
Explanation: Power = 1/focal length (in metres). SI unit = Dioptre (D).
Q37. The focal length of a lens is 0.25 m. Its power is:
a) +2 D
b) +4 D
c) -4 D
d) +5 D
✅ Answer: b) +4 D
Explanation: P = 1/f = 1/0.25 = 4 D (positive for convex lens).
Q38. The splitting of white light into seven colours by a prism is called:
a) Reflection
b) Refraction
c) Dispersion
d) Scattering
✅ Answer: c) Dispersion
Explanation: Dispersion separates white light into VIBGYOR.
Q39. Which natural phenomenon is an example of dispersion of light?
a) Twinkling of stars
b) Rainbow
c) Blue sky
d) Mirage
✅ Answer: b) Rainbow
Explanation: Rainbows form due to dispersion, refraction, and internal reflection in water droplets.
Q40. The defect of vision where images are not formed on the retina but before it is:
a) Myopia
b) Hypermetropia
c) Presbyopia
d) Cataract
✅ Answer: a) Myopia
Explanation: In myopia, image forms in front of retina.
Q41. The defect of vision where the lens becomes cloudy is called:
a) Myopia
b) Hypermetropia
c) Cataract
d) Presbyopia
✅ Answer: c) Cataract
Explanation: Cataract occurs due to cloudy eye lens; treated by surgery.
Q42. The stars appear higher in the sky than their actual position due to:
a) Reflection
b) Scattering
c) Atmospheric refraction
d) Dispersion
✅ Answer: c) Atmospheric refraction
Explanation: Light bends due to refraction, making stars appear higher.
Q43. The near point of a normal human eye is:
a) 10 cm
b) 20 cm
c) 25 cm
d) 50 cm
✅ Answer: c) 25 cm
Explanation: Near point = least distance of distinct vision = 25 cm.
Q44. The far point of a normal human eye is:
a) 25 cm
b) 50 cm
c) 1 km
d) Infinity
✅ Answer: d) Infinity
Explanation: A normal human eye can see distant objects at infinity clearly.
Q45. The twinkling of stars is caused by:
a) Scattering of light
b) Refraction of light
c) Dispersion of light
d) Reflection of light
✅ Answer: b) Refraction of light
Explanation: Atmospheric refraction due to varying air densities causes twinkling.
Q46. Planets do not twinkle because:
a) They are small
b) They are very far
c) They appear bigger and closer
d) They emit less light
✅ Answer: c) They appear bigger and closer
Explanation: Light from planets averages out due to their large apparent size.
Q47. The advance sunrise and delayed sunset is due to:
a) Dispersion
b) Scattering
c) Atmospheric refraction
d) Reflection
✅ Answer: c) Atmospheric refraction
Explanation: Sun is visible about 2 minutes before and after actual sunrise/sunset due to refraction.
Q48. The condition in which a person can see nearby objects but not distant objects clearly is:
a) Myopia
b) Hypermetropia
c) Presbyopia
d) Astigmatism
✅ Answer: a) Myopia
Explanation: Myopic people cannot see distant objects clearly.
Q49. A student suffering from hypermetropia should wear:
a) Concave lens
b) Convex lens
c) Cylindrical lens
d) Plano lens
✅ Answer: b) Convex lens
Explanation: Hypermetropia (farsightedness) is corrected using convex lenses.
Q50. A spectrum is formed when white light passes through a:
a) Concave lens
b) Plane mirror
c) Prism
d) Convex lens
✅ Answer: c) Prism
Explanation: Prism splits white light into its constituent colours.
Human Eye and Colourful World – MCQs (Part 3: Q51–Q75)
Q51. The least distance of distinct vision for a normal human eye is:
a) 10 cm
b) 25 cm
c) 50 cm
d) 75 cm
✅ Answer: b) 25 cm
Explanation: Near point of the human eye is 25 cm.
Q52. The retina of the human eye contains:
a) Only rods
b) Only cones
c) Rods and cones
d) Ciliary muscles
✅ Answer: c) Rods and cones
Explanation: Rods detect light intensity and cones detect colours.
Q53. The eye defect in which parallel rays of light are focused behind the retina is:
a) Myopia
b) Hypermetropia
c) Presbyopia
d) Cataract
✅ Answer: b) Hypermetropia
Explanation: In hypermetropia, image forms behind retina, so nearby objects appear blurred.
Q54. Which of the following phenomena is NOT due to atmospheric refraction?
a) Twinkling of stars
b) Blue colour of the sky
c) Advance sunrise
d) Delayed sunset
✅ Answer: b) Blue colour of the sky
Explanation: Blue sky is due to scattering, not refraction.
Q55. Which of the following is caused by scattering of light?
a) Blue sky
b) Red sunset
c) White colour of clouds
d) All of these
✅ Answer: d) All of these
Explanation: All are explained by scattering of different wavelengths of light.
Q56. Which colour has the longest wavelength?
a) Blue
b) Green
c) Red
d) Violet
✅ Answer: c) Red
Explanation: Red has the longest wavelength (~700 nm).
Q57. Which colour has the shortest wavelength?
a) Blue
b) Violet
c) Yellow
d) Green
✅ Answer: b) Violet
Explanation: Violet has the shortest wavelength (~400 nm).
Q58. The splitting of light into its constituent colours is known as:
a) Reflection
b) Refraction
c) Dispersion
d) Diffraction
✅ Answer: c) Dispersion
Explanation: Dispersion produces VIBGYOR spectrum.
Q59. Which of the following phenomena is responsible for formation of rainbow?
a) Reflection
b) Refraction and dispersion
c) Dispersion and total internal reflection
d) Refraction, dispersion, and total internal reflection
✅ Answer: d) Refraction, dispersion, and total internal reflection
Explanation: Rainbow is formed by combined effect of all three in water droplets.
Q60. The red colour of the Sun at sunrise and sunset is due to:
a) Dispersion
b) Refraction
c) Scattering
d) Reflection
✅ Answer: c) Scattering
Explanation: Blue light is scattered away, leaving red light visible.
Q61. The focal length of a convex lens is positive because:
a) It diverges light
b) It converges light
c) It has parallel faces
d) None of these
✅ Answer: b) It converges light
Explanation: Convex lens focuses parallel rays at a real focus.
Q62. Cataract can be treated by:
a) Convex lens
b) Concave lens
c) Surgery
d) Bifocal lens
✅ Answer: c) Surgery
Explanation: Cataract is due to cloudy lens, corrected by surgery.
Q63. The inability of eye lens to focus both near and far objects due to old age is called:
a) Hypermetropia
b) Myopia
c) Presbyopia
d) Astigmatism
✅ Answer: c) Presbyopia
Explanation: Due to weakening of ciliary muscles and reduced flexibility of lens.
Q64. The normal eye can see objects clearly up to:
a) 10 m
b) 100 m
c) Infinity
d) 1 km
✅ Answer: c) Infinity
Explanation: Far point of a normal eye is infinity.
Q65. The defect of vision caused due to irregular curvature of cornea or lens is:
a) Myopia
b) Hypermetropia
c) Presbyopia
d) Astigmatism
✅ Answer: d) Astigmatism
Explanation: In astigmatism, different parts of the image focus differently.
Q66. The danger signal lights are red because:
a) Red has high energy
b) Red has long wavelength and least scattering
c) Red is brightest
d) Red is easily absorbed
✅ Answer: b) Red has long wavelength and least scattering
Explanation: Red light travels farther without scattering.
Q67. Why does the sky appear dark to astronauts?
a) No refraction
b) No scattering in space
c) No reflection
d) No dispersion
✅ Answer: b) No scattering in space
Explanation: Space lacks atmosphere, so no scattering occurs.
Q68. Which phenomenon is responsible for the apparent flattening of the Sun at sunrise and sunset?
a) Dispersion
b) Refraction
c) Scattering
d) Reflection
✅ Answer: b) Refraction
Explanation: Atmospheric refraction bends light rays, causing flattening.
Q69. The splitting of white light by a prism proves that:
a) White light is a single colour
b) White light consists of seven colours
c) White light cannot be dispersed
d) None of these
✅ Answer: b) White light consists of seven colours
Explanation: Newton proved white light is a mixture of seven colours.
Q70. A rainbow appears in the sky due to:
a) Reflection by clouds
b) Dispersion of sunlight by water droplets
c) Refraction only
d) Scattering by dust particles
✅ Answer: b) Dispersion of sunlight by water droplets
Explanation: Sunlight undergoes dispersion, refraction, and internal reflection in droplets.
Q71. Why is the colour of the sky blue during the day?
a) Due to dispersion
b) Due to scattering of shorter wavelengths
c) Due to refraction
d) Due to reflection
✅ Answer: b) Due to scattering of shorter wavelengths
Explanation: Blue light scatters more (∝ 1/λ⁴), giving the sky its colour.
Q72. Which of the following is an example of atmospheric refraction?
a) Rainbow
b) Blue colour of water
c) Mirage
d) Twinkling of stars
✅ Answer: d) Twinkling of stars
Explanation: Twinkling is due to atmospheric refraction.
Q73. The white colour of clouds is due to:
a) Scattering of all wavelengths equally
b) Dispersion
c) Reflection
d) Refraction
✅ Answer: a) Scattering of all wavelengths equally
Explanation: Water droplets scatter all colours equally, making clouds white.
Q74. Which part of the human eye acts like a camera film?
a) Cornea
b) Retina
c) Lens
d) Iris
✅ Answer: b) Retina
Explanation: Retina receives light and forms images, like film in a camera.
Q75. Which type of lens is used to correct myopia?
a) Convex lens
b) Concave lens
c) Cylindrical lens
d) Bifocal lens
✅ Answer: b) Concave lens
Explanation: Concave lens diverges rays, shifting image onto the retina.
Human Eye and Colourful World – MCQs (Part 4: Q76–Q100)
Q76. The focal length of the eye lens increases when:
a) Ciliary muscles contract
b) Ciliary muscles relax
c) Pupil contracts
d) Iris expands
✅ Answer: b) Ciliary muscles relax
Explanation: Relaxation decreases curvature of the lens → focal length increases (for distant vision).
Q77. The focal length of the eye lens decreases when:
a) Ciliary muscles relax
b) Ciliary muscles contract
c) Pupil closes
d) Iris contracts
✅ Answer: b) Ciliary muscles contract
Explanation: Contraction increases curvature of lens → focal length decreases (for near vision).
Q78. The time gap between actual sunset and apparent sunset is about:
a) 1 minute
b) 2 minutes
c) 5 minutes
d) 10 minutes
✅ Answer: b) 2 minutes
Explanation: Due to atmospheric refraction, Sun is visible for ~2 minutes after actual sunset.
Q79. The blue colour of the sky is explained by:
a) Newton’s law
b) Rayleigh’s law
c) Coulomb’s law
d) Snell’s law
✅ Answer: b) Rayleigh’s law
Explanation: Rayleigh’s law → scattering ∝ 1/λ⁴, shorter wavelengths scatter more.
Q80. Which phenomenon explains the reddish appearance of the Moon during lunar eclipse?
a) Reflection
b) Refraction and scattering
c) Dispersion
d) Total internal reflection
✅ Answer: b) Refraction and scattering
Explanation: Earth’s atmosphere scatters shorter wavelengths, allowing only red light to reach the Moon.
Q81. The spectrum of white light consists of how many colours?
a) 5
b) 6
c) 7
d) 8
✅ Answer: c) 7
Explanation: VIBGYOR = 7 colours.
Q82. Which colour of light is least scattered in the atmosphere?
a) Blue
b) Green
c) Yellow
d) Red
✅ Answer: d) Red
Explanation: Red light has longest wavelength → least scattering.
Q83. Which colour of light is scattered the most in the atmosphere?
a) Red
b) Blue
c) Green
d) Yellow
✅ Answer: b) Blue
Explanation: Blue has shorter wavelength → maximum scattering.
Q84. The eye defect in which parallel rays of light are not brought to focus in one plane is:
a) Myopia
b) Hypermetropia
c) Presbyopia
d) Astigmatism
✅ Answer: d) Astigmatism
Explanation: Astigmatism is caused by irregular curvature of cornea/lens.
Q85. The twinkling of stars is due to:
a) Reflection
b) Atmospheric refraction
c) Scattering
d) Dispersion
✅ Answer: b) Atmospheric refraction
Explanation: Uneven air densities bend light, causing stars to twinkle.
Q86. The Sun looks reddish at sunrise and sunset because:
a) Red light has longer wavelength
b) Red light is absorbed
c) Red light is fastest
d) None of these
✅ Answer: a) Red light has longer wavelength
Explanation: Red is least scattered; blue is scattered away, so Sun looks red.
Q87. The persistence of vision is responsible for:
a) Rainbow formation
b) Continuity of motion in cinema
c) Colour of sky
d) Mirage
✅ Answer: b) Continuity of motion in cinema
Explanation: Due to persistence of vision (1/16 s), successive frames blend.
Q88. The apparent shift in the position of stars is due to:
a) Scattering
b) Dispersion
c) Atmospheric refraction
d) Reflection
✅ Answer: c) Atmospheric refraction
Explanation: Refraction bends starlight, making stars appear displaced.
Q89. Which phenomenon is responsible for the clear sky appearing dark to astronauts?
a) Reflection
b) No scattering in space
c) Refraction
d) Dispersion
✅ Answer: b) No scattering in space
Explanation: Space lacks atmosphere → no scattering, sky looks dark.
Q90. The human eye can focus objects at different distances due to:
a) Shape of cornea
b) Accommodation of eye lens
c) Colour vision
d) Persistence of vision
✅ Answer: b) Accommodation of eye lens
Explanation: Eye adjusts focal length using ciliary muscles.
Q91. The defect of vision caused by cloudy eye lens is:
a) Myopia
b) Hypermetropia
c) Cataract
d) Presbyopia
✅ Answer: c) Cataract
Explanation: Cataract is due to cloudy lens; corrected by surgery.
Q92. The atmospheric phenomenon responsible for the reddening of the Sun at sunrise is:
a) Dispersion
b) Scattering
c) Refraction
d) Reflection
✅ Answer: b) Scattering
Explanation: Short wavelengths scatter away, leaving red.
Q93. Which instrument works on the principle of persistence of vision?
a) Microscope
b) Telescope
c) Movie projector
d) Camera
✅ Answer: c) Movie projector
Explanation: Projectors depend on persistence of vision.
Q94. The scattering of light depends on:
a) Wavelength
b) Size of scattering particles
c) Nature of particles
d) All of these
✅ Answer: d) All of these
Explanation: Scattering is affected by λ, particle size, and composition.
Q95. The short-sightedness is also known as:
a) Hypermetropia
b) Presbyopia
c) Myopia
d) Astigmatism
✅ Answer: c) Myopia
Explanation: Myopia = near-sightedness.
Q96. The lens used in spectacles to correct long-sightedness is:
a) Concave lens
b) Convex lens
c) Bifocal lens
d) Plano lens
✅ Answer: b) Convex lens
Explanation: Convex lens converges rays to correct hypermetropia.
Q97. A prism deviates different colours of light differently because:
a) Speed of light is different for different colours
b) All colours have same speed
c) Reflection occurs
d) Scattering occurs
✅ Answer: a) Speed of light is different for different colours
Explanation: Refractive index of prism material differs for different wavelengths.
Q98. The splitting of white light into different colours by a prism is due to:
a) Equal refraction of colours
b) Unequal refraction of different colours
c) Scattering
d) Reflection
✅ Answer: b) Unequal refraction of different colours
Explanation: Different wavelengths bend differently, causing dispersion.
Q99. Which colour bends the least in a prism?
a) Violet
b) Green
c) Yellow
d) Red
✅ Answer: d) Red
Explanation: Red has longest wavelength, deviates least.
Q100. Which colour bends the most in a prism?
a) Blue
b) Violet
c) Yellow
d) Red
✅ Answer: b) Violet
Explanation: Violet has shortest wavelength, deviates maximum.
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❓ FAQ Section:
Q1. Why are Human Eye and Colourful World MCQs important for CBSE Class 10 Science?
Ans: This chapter carries significant weight in exams, covering eye structure, vision defects, dispersion, scattering, and atmospheric refraction.
Q2. How many marks can this chapter carry in CBSE Class 10 Board Exams?
Ans: The “Human Eye and Colourful World” chapter typically carries 6–8 marks, including MCQs and application-based questions.
Q3. What are the most important topics for MCQs in Human Eye and Colourful World?
Ans: Key topics include structure of eye, myopia, hypermetropia, presbyopia, rainbow formation, blue sky, and red sunsets.
Q4. How can I prepare effectively for Human Eye and Colourful World MCQs?
Ans: Revise NCERT concepts, solve practice MCQs with explanations, attempt previous year CBSE papers, and learn important diagrams.
Q5. Which phenomena of light are explained in this chapter?
Ans: Important phenomena include refraction, dispersion, scattering, atmospheric refraction, and persistence of vision.
