Trivia: Human Eye And The Colourful World! Quiz
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(49).jpg "Trivia: Human Eye And The Colourful World! Quiz")
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- 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.
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- B.
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- C.
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- D.
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- 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.
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- B.
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- C.
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- D.
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- 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.
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- B.
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- C.
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- D.
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- 12.
![Figure a, b, c respectively; indicate the point in case of:
- ProProfs]( "Figure a, b, c respectively; indicate the point in case of:")
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.
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- B.
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- C.
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- D.
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- 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
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