NCERT Class 10 Science Chapter 11 MCQs – The human eye and the colorful world

The Human Eye and the Colorful World MCQ Questions with Answers


CBSE Class 10 Science Chapter 11 The human eye and the colorful world MCQ Questions with Answers

The Human Eye and the Colorful World MCQs – Here is a compilation of Class 10 Science MCQs Chapter 11 The human eye and the colorful world. Students can practice free MCQs as have been added by CBSE in the new Exam pattern. At the end of Multiple Choice Questions, the answer key has also been provided for your reference. Take Free Online MCQs Test For Class 10.


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1. The image formed by retina of human eye is :
A. Virtual and erect
B. Real and inverted
C. Virtual and inverted
D. Real and erect


2. The change in focal length of human eye is caused due to –
A. Ciliary muscles
B. Pupil
C. Cornea
D. Iris


3. The least distance of distinct vision for a young adult with normal vision is :
A. 25m
B. 20m
C. 25cm
D. 20cm


4. The persistence of vision for human eye is-
A. 1/10th of a sec
B. 1/16th of a sec
C. 1/6th of a sec
D. 1/18th of a sec


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5. The light sensitive cell present on retina and is sensitive to the intensity of light is :
A. cones
B. Rod cell
C. Both cone and rod cells
D. None



6. The phenomenon of light responsible for the working of human eye is :
A. Reflection
B. Refraction
C. Power of accommodation
D. Persistence of vision


7. Which of the following colours is least scattered by fog, dust or smoke :
A. Violet
B. Blue
C. Red
D. Yellow


8. The coloured light that reflects most while passing through a prism is :
A. yellow
B. Violet
C. Blue
D. Red


9. The amount of light entering the eye is controlled by :
A. Ciliary muscles
B. Pupil
C. Cornea
D. Iris


10. The part of the eye which refracts light entering the eye from external objects :
A. Lens
B. Cornea
C. Iris
D. Pupil


11. The variation of focal length to form a sharp image on the retina is called ----.
A. Accommodation
B. Aperture
C. Retina control
D. Sutter


12. In human eye image is formed :
A. Behind retina
B. In front of retina
C. On retina
D. In between lens and retina


13. Light enters eye through a transparent membrane called :
A. Cornea
B. Pupli
C. Iris
D. Retina


14. Colored portion of eye that controls amount of light reaching retina is called :
A. Cornea
B. Pupil
C. Retina control
D. Iris


15. Human eye acts like a -------.
A. Endoscope
B. Camera
C. Telescope
D. Microscope


16. The passage through which tears pass is :
A. Cornea
B. Tear gland
C. Tear duct
D. Eyeball


17. The part of eye that is a messenger of electrochemical signals from eye to brain is called :
A. Blood vessel
B. Optic nerve
C. Iris
D. Cornea


18. Thing that shuts automatically to protect eyes is known as :
A. Eyelash
B. Eyelid
C. Iris
D. Cornea


19. Ability of combination of dual vision of eyes is called :
A. Dim vision
B. Concave vision
C. Binocular vision
D. Bright vision


20. For a young adult with normal vision the far point is :
A. 20cm
B. 20m
C. 20Km
D. Infinity


21. Sunlight is a mixture of __ visible colours
A. 5
B. 6
C. 7
D. none


22. The effect of glass prism is only to separate the seven colours of
A. White light
B. light from bulb
C. Sunlight
D. All


23. The __ colour is at the top and ____ colour is at the bottom of spectrum.
A. Red, Violet
B. Red, Blue
C. Violet, red
D. None


24. Who discovered the experiments with glass prism that white light consists of seven colours
A. Newton
B. Faraday
C. Maxwell
D. Young


25. The light that refracts most while passing through a prism
A. Red
B. Violet
C. Indigo
D. Yellow


26. The rod cells responds to
A. Colour of light
B. Source of light
C. Intensity of light
D. None


27. Which of the following colours is the least deviated on passing through a prism :
A. Red
B. Yellow
C. Violet
D. Indigo


28. Cornea is a transparent spherical structure which ____
A. Reflects light
B. Refracts light
C. Scatters light
D. None


29. The image on the retina remains for 1/16th of sec. This is called as:
A. Accomodation
B. Persistence of vision
C. Both a and b
D. None


30. The middle vascular layer that darkens the eye from inside and prevents internal reflection is :
A. Choroid
B. Sclera
C. Retina
D. Cornea


31. The eye lens is a
A. Transparent double convex lens
B. Transparent double concave lens
C. Transparent concave convex lens
D. None


32. The eye lens contains a liquid called :
A. Aqueous humour
B. Peroxide
C. Vitreous humour
D. None


33. Long sightedness is caused by eyeball being too short. It can be corrected by :
A. Using convergent lens
B. Plane mirror
C. Divergent lens
D. None


34. Astigmatism occurs when the cornea does not have a truly spherical shape. The defect can be cured by :
A. Concave lens
B. Cylindrical shape
C. Convex lens
D. Plane convex lens


35. The power of lens being +4 D, suggests that it is :
A. Convex lens
B. Plane convex lens
C. Concave lens
D. none


36. When an object moves towards a convex lens the size of image _____.
A. Decreases
B. Increases
C. First decreases then increases
D. Remains the same


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37. When Newton colour disc is rotated fast, the different colours _____.
A. Can be separated
B. Can be differentiated
C. Can not be differentiated
D. None


38. When a ray passes through a prism ______.
A. It goes undeviated
B. It remain parallel to a base
C. It bends towards the base
D. None


39. The angle at which the ray gets deviated is called :
A. Angle of deviation
B. Angle of dispersion
C. Angle emergence
D. refracted angle


40. At a particular minimum angle of deviation, the prism is under :
A. Maximum deviation position
B. Minimum or maximum deviation position
C. Minimum deviation position
D. None


41. At a particular minimum value of angle of deviation, the refracted ray becomes :
A. Parallel to base of prism
B. Perpendicular to base of prism
C. Inclined at 45degrees w.r.t base of prism
D. None


42. The angle between two refracting surfaces of prism is :
A. Prism
B. Emergence
C. Deviation
D. Incidence


43. A transparent refracting material which is bounded by two plane refracting surfaces is :
A. Prism
B. Convex lens
C. Glass slab
D. None


44. The ratio of real depth to apparent depth is called :
A. Refractive index
B. Critical angle
C. Lateral displacement
D. None


45. The image formed by retina of human eye is :
A. Permanent
B. temporary
C. Blurred
D. None


46. The property related to the sense of continuity of vision is called :
A. Persistence of vision
B. Colour blindness
C. Optical illusion
D. None


47. When the muscles are relaxed, the eye lens is ______ and the distant objects can be seen clearly.
A. Thin
B. Thick
C. Inclined
D. None


48. When looking at nearby objects the muscles ____ the eye lens so as to __ its focal length.
A. Compresses, increases
B. Compresses, decreases
C. Expands, increase
D. Expands, decrease


49. The muscular diaphragm that controls the sides of pupil is :
A. Cornea
B. Ciliary muscles
C. Iris
D. Retina


50. Having two eyes facilities :
A. Increasing the field view
B. Three dimensional view
C. Developing concept of distance
D. All


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Answer Key for Class 10 Science Book Chapter 11 The human eye and the colorful world MCQs

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