Trivia: Human Eye And The Colourful World! Quiz

15 Questions | Total Attempts: 3867

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Trivia: Human Eye And The Colourful World! Quiz

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Questions and Answers
  • 1. 
    The term “accommodation” as applied to the eye, refers to its ability to:
    • A. 

      Control the light intensity falling on the retina

    • B. 

      Erect the inverted image formed on the retina

    • C. 

      Vary the focal length of the lens

    • D. 

      Vary the distance between the lens and retina

  • 2. 
    How do you think that the eye change in order to focus on near or distant objects?
    • A. 

      The lens moves in or out

    • B. 

      The retina moves in or out

    • C. 

      The lens becomes thicker or thinner

    • D. 

      The pupil gets larger or smaller

  • 3. 
    A person cannot see the distant objects clearly (though he can see the nearby objects clearly). He is suffering from the defect of vision called:
    • A. 

      Cataract

    • B. 

      Hypermetropia

    • C. 

      Myopia

    • D. 

      Presbyopia

  • 4. 
    A got his eye tested. The optician’s prescription for the spectacles reads: Left eye: –3 D Right eye: +3.50 D The person is having a defect of vision called:
    • A. 

      Presbyopia

    • B. 

      Myopia

    • C. 

      Astigmatism

    • D. 

      Hypermetropia

  • 5. 
    • A. 

      The near point of his eyes has receded away

    • B. 

      The near point of his eyes has come closer to him.

    • C. 

      The far point of his eyes has receded away.

    • D. 

      The far point of his eyes has come closer to him.

  • 6. 
    With both eyes open, a person’s field of view is about:
    • A. 
    • B. 
    • C. 
    • D. 
  • 7. 
    When a beam of white light falls on a glass prism, the colour of light which undergoes the least bending of all is:
    • A. 

      Violet

    • B. 

      Red

    • C. 

      Green

    • D. 

      Blue

  • 8. 
    The reason for stars appearing higher in sky than they actually are; is because of:
    • A. 

      Diffraction of light

    • B. 

      Scattering of light

    • C. 

      Refraction of light

    • D. 

      Reflection of light

  • 9. 
    The sky appears blue because some of the blue component of the sunlight is scattered by:
    • A. 

      Gas molecules present in air

    • B. 

      Dust particles present in air

    • C. 

      Water droplets suspended in air

    • D. 

      Soot particles present in air

  • 10. 
    Which of the following figures correctly represents the passage of white light through prism?
    • A. 
    • B. 
    • C. 
    • D. 
  • 11. 
    When a graph is plotted taking angle of deviation along the y axis and angle of incidence along the x axis, which of the following figures correctly represents this variation?
    • A. 
    • B. 
    • C. 
    • D. 
  • 12. 
    Figure a, b, c respectively; indicate the point in case of:
    • A. 

      The hypermetropic eye, the myopic eye and normal eye

    • B. 

      The normal eye, the myopic eye and hypermetropic eye

    • C. 

      The normal eye, the hypermetropic eye and myopic eye

    • D. 

      The myopic eye, the normal eye and hypermetropic eye

  • 13. 
    In which of the following cases will no dispersion take place when sunlight passes through it?
    • A. 
    • B. 
    • C. 
    • D. 
  • 14. 
    A: Astigmatism is a focusing error in two perpendicular lines. B: Stars twinkle due to refraction in the fluctuating atmosphere.
    • A. 

      Both 'A' and 'B' are true statements

    • B. 

      Both 'A' and 'B' are false statements.

    • C. 

      ‘A' is true while 'B' is false

    • D. 

      ‘A' is false while 'B' is true

  • 15. 
    Having two eyes facilitates in: A: Increasing the field of view B: Bringing a three-dimensional view C: Developing the concept of distance/size. Then the correct option is/are:
    • A. 

      A only

    • B. 

      A and B only

    • C. 

      B only

    • D. 

      A, B and C