{"id":8678,"date":"2021-09-21T17:20:16","date_gmt":"2021-09-21T11:50:16","guid":{"rendered":"https:\/\/mcqbooks.com\/?p=8678"},"modified":"2021-10-11T00:10:30","modified_gmt":"2021-10-10T18:40:30","slug":"mcq-questions-for-class-10-science-chapter-11","status":"publish","type":"post","link":"https:\/\/mcqbooks.com\/mcq-questions-for-class-10-science-chapter-11\/","title":{"rendered":"MCQ Questions for Class 10 Science Chapter 11 Human Eye and Colourful World with Answers"},"content":{"rendered":"

If you’re looking for a way to enhance your Class 10 Science Physics, then look no further than the NCERT MCQ Questions for Class 10 Science Chapter 11 Human Eye and Colourful World with Answers. MCQ Questions for Class 10 Science with Answers<\/a> is perfect for those who are in Class 10 Physics and want to get ahead of everyone else by mastering their subject skills as soon as possible!<\/p>\n

Human Eye and Colourful World Class 10 MCQs Questions with Answers<\/h2>\n

Solving Human Eye and Colourful World Multiple Choice Questions of Class 10 Science Chapter 11 MCQ can be of great help to students as they will be aware of all the concepts. These MCQ Questions on Human Eye and Colourful World Class 10 with answers pave for a quick revision, thereby helping you learn more about this subject.<\/p>\n

Question 1.
\nssertion: Blind spot is a small area of the retina which is insensitive to light where the optic nerve leaves the eye.
\nReason: There are no rods or cones present at the junction of optic nerve and retina in the eye.
\n(a) Both A and R are true and R is the correct explanation of A.
\n(b) Both A and R are true but R is not the correct explanation of A.
\n(c) A is true but R is false.
\n(d) A is false but R is true.
\n(e) Both A and R are false.<\/p>\n

\nAnswer<\/span><\/summary>\n

(a) Both A and R are true and R is the correct explanation of A.<\/p>\n<\/details>\n

\n

Question 2.
\nThe defect of the eye in which the eyeball becomes too long is
\n(a) myopia
\n(b) hypermetropia
\n(c) presbyopia
\n(d) cataract<\/p>\n

\nAnswer<\/span><\/summary>\n

(a) myopia<\/p>\n<\/details>\n

\n

Question 3.
\nWhat type of image is formed by the eye lens on the retina?
\n(a) Real and erect
\n(b) Virtual and inverted
\n(c) Real and inverted
\n(d) Virtual and erect<\/p>\n

\nAnswer<\/span><\/summary>\n

(c) Real and inverted<\/p>\n<\/details>\n

\n

Question 4.
\nThe amount of light entering the eye can be controlled by the
\n(a) iris
\n(b) pupil
\n(c) cornea
\n(d) ciliary muscles<\/p>\n

\nAnswer<\/span><\/summary>\n

(b) pupil<\/p>\n<\/details>\n

\n

Question 5.
\nAt noon, the Sun appears white as
\n(a) blue colour is scattered the most
\n(b) red colour is scattered the most
\n(c) light is least scattered
\n(d) all the colours of the white light are scattered away<\/p>\n

\nAnswer<\/span><\/summary>\n

(c) light is least scattered<\/p>\n<\/details>\n

\n

Question 6.
\nTwinkling of stars is due to
\n(a) reflection of light by clouds
\n(b) scattering of light by dust particles
\n(c) dispersion of light by water drops
\n(d) atmospheric refraction of starlight<\/p>\n

\nAnswer<\/span><\/summary>\n

(d) atmospheric refraction of starlight<\/p>\n<\/details>\n

\n

Question 7.
\nThe splitting of white light into different colours on passing through a prism is called
\n(a) reflection
\n(b) refraction
\n(c) dispersion
\n(d) deviation<\/p>\n

\nAnswer<\/span><\/summary>\n

(c) dispersion<\/p>\n<\/details>\n

\n

Question 8.
\nA person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power
\n(a) + 0.5 D
\n(b) – 0.5 D
\n(c) + 0.2 D
\n(d) – 0.2 D<\/p>\n

\nAnswer<\/span><\/summary>\n

(b) – 0.5 D<\/p>\n<\/details>\n

\n

Question 9.
\nThe clear sky appears blue because
\n(a) blue light gets absorbed in the atmosphere.
\n(b) ultraviolet radiations are absorbed in the atmosphere.
\n(c) violet and blue lights get scattered more than lights of all other colours by the atmosphere.
\n(d) light of all other colours is scattered more than the violet and blue colour lights by the atmosphere.<\/p>\n

\nAnswer<\/span><\/summary>\n

(c) violet and blue lights get scattered more than lights of all other colours by the atmosphere.<\/p>\n<\/details>\n

\n

Question 10.
\nOne cannot see through the fog, because
\n(a) refractive index of the fog is very high
\n(b) light suffers total reflection at droplets
\n(c) fog absorbs light
\n(d) light is scattered by the droplets<\/p>\n

\nAnswer<\/span><\/summary>\n

(d) light is scattered by the droplets<\/p>\n<\/details>\n

\n

Question 11.
\nRefraction of light by the earth\u2019s atmosphere due to variation in air density is called
\n(a) atmospheric reflection
\n(b) atmospheric dispersion
\n(c) atmospheric scattering
\n(d) atmospheric refraction<\/p>\n

\nAnswer<\/span><\/summary>\n

(d) atmospheric refraction<\/p>\n<\/details>\n

\n

Question 12.
\nThe deflection of light by minute particles and molecules of the atmosphere in all direction is called …………………….. of light.
\n(a) dispersion
\n(b) scattering
\n(c) interference
\n(d) tyndell effect<\/p>\n

\nAnswer<\/span><\/summary>\n

(c) interference<\/p>\n<\/details>\n

\n

Question 13.
\nThe air layer of atmosphere whose temperature is less then the hot layer behave as optically
\n(a) denser medium
\n(b) rarer medium
\n(c) inactive medium
\n(d) either denser or rarer medium<\/p>\n

\nAnswer<\/span><\/summary>\n

(a) denser medium<\/p>\n<\/details>\n

\n

Question 14.
\nThe focal length of the eye lens increases when eye muscles.
\n(a) are relaxed and lens becomes thinner
\n(b) contract and lens becomes thicker
\n(c) are relaxed and lens becomes thicker
\n(d) Contract and lens becomes thinner.<\/p>\n

\nAnswer<\/span><\/summary>\n

(a) are relaxed and lens becomes thinner<\/p>\n<\/details>\n

\n

Question 15.
\nThe colour that is scattered the least by the tiny particles and the atoms\/ molecules of the atmosphere is
\n(a) Violet
\n(b) Green
\n(c) yellow
\n(d) Red<\/p>\n

\nAnswer<\/span><\/summary>\n

(d) Red<\/p>\n<\/details>\n

\n

Question 16.
\nThe image formed on the retina of the human eye is
\n(a) virtual and inverted
\n(b) real and inverted
\n(c) real and erect
\n(d) virtual and erect<\/p>\n

\nAnswer<\/span><\/summary>\n

(b) real and inverted<\/p>\n<\/details>\n

\n

Question 17.
\nWhen a person is myopic, he\/ she can clearly see
\n(a) both nearby and far off objects
\n(b) Only nearby objects
\n(c) only far off objects
\n(d) Neither nearby nor far off objects<\/p>\n

\nAnswer<\/span><\/summary>\n

(b) Only nearby objects<\/p>\n<\/details>\n

\n

Question 18.
\nThe defect of vision in which the person is able to see distant object distinctly but cannot see nearby objects clearly is called
\n(a) Long-sightedness
\n(b) Far-sightedness
\n(c) Hypermetropia
\n(d) All of the above<\/p>\n

\nAnswer<\/span><\/summary>\n

(d) All of the above<\/p>\n<\/details>\n

\n

Question 19.
\nThe defect of myopia can be corrected by using
\n(a) Concave lens
\n(b) Convex lens
\n(c) Either concave or convex
\n(d) A complicated combination of lenses.<\/p>\n

\nAnswer<\/span><\/summary>\n

(a) Concave lens<\/p>\n<\/details>\n

\n

Question 20.
\nWhich of the following phenomenon contributes significantly to the reddish appearance of the sun at sunrise or sunset?
\n(a) Dispersion of light
\n(b) Scattering of light
\n(c) Total internal Reflection
\n(d) Reflection of light from the earth<\/p>\n

\nAnswer<\/span><\/summary>\n

(b) Scattering of light<\/p>\n<\/details>\n

\n

Question 21.
\nAssertion: Concave mirrors are used as reflectors in torches, vehicle head-lights and in search lights.
\nReason: When an object is placed beyond the centre of curvature of a concave mirror, the image formed is real and inverted.
\n(a) Both A and R are true and R is the correct explanation of A.
\n(b) Both A and R are true but R is not the correct explanation of A.
\n(c) A is true but R is false.
\n(d) A is false but R is true.
\n(e) Both A and R are false.<\/p>\n

\nAnswer<\/span><\/summary>\n

(b) Both A and R are true but R is not the correct explanation of A.<\/p>\n<\/details>\n

\n

Question 22.
\nAssertion: The near-point of a hypermetropic eye is more than 25 cm away.
\nReason: Hypermetropia is corrected using spectacles containing concave lenses.
\n(a) Both A and R are true and R is the correct explanation of A.
\n(b) Both A and R are true but R is not the correct explanation of A.
\n(c) A is true but R is false.
\n(d) A is false but R is true.
\n(e) Both A and R are false.<\/p>\n

\nAnswer<\/span><\/summary>\n

(c) A is true but R is false.<\/p>\n<\/details>\n

\n

Question 23.
\nWhich of the following is a natural phenomenon which is caused by the dispersion of sunlight in the sky?
\n(a) Twinkling of stars
\n(b) Stars seem higher than they actually are
\n(c) Advanced sunrise and delayed sunset
\n(d) Rainbow<\/p>\n

\nAnswer<\/span><\/summary>\n

(d) Rainbow<\/p>\n<\/details>\n

\n

Question 24.
\nThe medical condition in which the lens of the eye of a person becomes progressively cloudy resulting in blurred vision is called
\n(a) myopia
\n(b) hypermetropia
\n(c) presbyopia
\n(d) cataract<\/p>\n

\nAnswer<\/span><\/summary>\n

(d) cataract<\/p>\n<\/details>\n

\n

Question 25.
\nThe least distance of distinct vision for a normal eye is
\n(a) infinity
\n(b) 25 cm
\n(c) 2.5 cm
\n(d) 25 m<\/p>\n

\nAnswer<\/span><\/summary>\n

(b) 25 cm<\/p>\n<\/details>\n

\n

Question 26.
\nThe defect of vision in which a person cannot see the distant objects clearly but can see nearby objects clearly is called
\n(a) myopia
\n(b) hypermetropia
\n(c) presbyopia
\n(d) bifocal eye<\/p>\n

\nAnswer<\/span><\/summary>\n

(a) myopia<\/p>\n<\/details>\n

\n

Question 27.
\nA person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power
\n(a) + 0.5 D
\n(b) – 0.5 D
\n(c) + 0.2 D
\n(d) – 0.2 D<\/p>\n

\nAnswer<\/span><\/summary>\n

(b) -0.5 D<\/p>\n<\/details>\n

\n

Question 28.
\nNear and far points of a young person normal eye respectively are
\n(a) 0 and infinity
\n(b) 0 and 25 cm
\n(c) 25 cm and infinity
\n(d) 25 cm and 150 cm.<\/p>\n

\nAnswer<\/span><\/summary>\n

(c) 25 cm and infinity<\/p>\n<\/details>\n

\n

Question 29.
\nTwinkling of stars is due to atmospheric
\n(a) dispersion of light by water droplets
\n(b) refraction of light by different layers of varying refractive indices
\n(c) scattering of light by dust particles
\n(d) internal reflection of light by clouds.<\/p>\n

\nAnswer<\/span><\/summary>\n

(b) refraction of light by different layers of varying refractive indices<\/p>\n<\/details>\n

\n

Question 30.
\nThe danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because among all other colours, the red light
\n(a) is scattered the most by smoke or fog
\n(b) is scattered the least by smoke or fog
\n(b) is absorbed the most by smoke or fog
\n(c) moves fastest in air<\/p>\n

\nAnswer<\/span><\/summary>\n

(b) is scattered the least by smoke or fog<\/p>\n<\/details>\n

\n

Question 31.
\nWhen white light enters a prism, it gets split into its constituent colours. This is due to
\n(a) different refractive index for different wavelength of each colour
\n(b) each colours has same velocity in the prism.
\n(c) prism material have high density.
\n(d) Scattering of light<\/p>\n

\nAnswer<\/span><\/summary>\n

(a) different refractive index for different wavelength of each colour<\/p>\n<\/details>\n

\n

Question 32.
\nThe change in focal length of an eye lens is caused by the action of the
\n(a) Pupil
\n(b) Retina
\n(c) Cilliary muscles
\n(d) Iris<\/p>\n

\nAnswer<\/span><\/summary>\n

(c) Cilliary muscles<\/p>\n<\/details>\n

\n

Question 33.
\nThe human eye forms the image of an object at its
\n(a) Cornea
\n(b) Iris
\n(c) Pupil
\n(d) Retina<\/p>\n

\nAnswer<\/span><\/summary>\n

(d) Retina<\/p>\n<\/details>\n

\n

Question 34.
\nThe least distance of distinct vision for an eye lens is caused by the action of the
\n(a) 25 m
\n(b) 2.5 cm
\n(c) 25 cm
\n(d) 2.5 m<\/p>\n

\nAnswer<\/span><\/summary>\n

(c) 25 cm<\/p>\n<\/details>\n

\n

Question 35.
\nThe human eye can focus objects at different distances by adjusting the focal length of the eye lens. This is due to
\n(a) Presbyopia
\n(b) Accommodation
\n(c) Near-sightedness
\n(d) Far-sightedness<\/p>\n

\nAnswer<\/span><\/summary>\n

(b) Accommodation<\/p>\n<\/details>\n

\n

Question 36.
\nBi-focal lens are required to correct
\n(a) astigmatism
\n(b) coma
\n(c) myopia
\n(d) presbyopia<\/p>\n

\nAnswer<\/span><\/summary>\n

(d) presbyopia<\/p>\n<\/details>\n

\n

Question 37.
\nThe ability of eye lens to adjust its focal length to form a sharp image of the object at varying distances on the retina is called
\n(a) Power of observation of the eye
\n(b) Power of adjustment of the eye
\n(c) Power of accommodation of the eye
\n(d) Power of enabling of the eye<\/p>\n

\nAnswer<\/span><\/summary>\n

(c) Power of accommodation of the eye<\/p>\n<\/details>\n

\n

Question 38.
\nMyopia and hypermetropia can be corrected by
\n(a) Concave and plano-convex lens
\n(b) Concave and convex lens
\n(c) Convex and concave lens
\n(d) Plano-concave lens for both defects.<\/p>\n

\nAnswer<\/span><\/summary>\n

(b) Concave and convex lens<\/p>\n<\/details>\n

\n

Question 39.
\nThe muscular diaphragm that controls the size of the pupil is
\n(a) cornea
\n(b) ciliary muscles
\n(c) iris
\n(d) retina<\/p>\n

\nAnswer<\/span><\/summary>\n

(c) iris<\/p>\n<\/details>\n

\n

Question 40.
\nThe black opening between the aqueous humour and the lens is called
\n(a) retina
\n(b) iris
\n(c) cornea
\n(d) pupil<\/p>\n

\nAnswer<\/span><\/summary>\n

(d) pupil<\/p>\n<\/details>\n

\n

Hope you found this information on NCERT MCQ Questions for Class 10 Science Chapter 11 Human Eye and Colourful World with Answers useful. We are always here to help, so if there is any specific query or question with CBSE Class 10 Science Human Eye and Colourful World MCQs Multiple Choice Questions with Answers or any other topic please let us know in the comments below.<\/p>\n

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Physics MCQs Questions for Class 10 with Answers<\/h3>\n

MCQ Questions for Class 10 Science Physics with Answers PDF Download Chapter Wise<\/p>\n