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What is the function of pupil of the hum...

What is the function of pupil of the human eye ?

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The function of pupil is to control the amount of light entering into the eye lens.
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ZEN PUBLICATION-THE HUMAN EYE AND THE COLOURFUL WORLD-ZEN ADDITIONAL QUESTIONS SECTION - VERY SHORT ANSWER TYPE QUESTIONS
  1. Which part of the eye generates electric signals ?

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  2. What is blind spot ?

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  3. What is the function of pupil of the human eye ?

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  4. Which muscles help in changing the shape of the eye lens ?

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  5. State one point of similarity between the image formed by the human ey...

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  6. Why are we not able to see the things clearly when we come out of a dr...

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  7. why does it take some time to see objects in a cinema hall when we jus...

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  8. Define the least distance of distinct vision. What is its value ?

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  9. How is cataract caused ? How is it cured ?

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  10. Mention one advantage of having two eyes instead of one.

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  11. How do the eyes of a tiger difer from that of a rabbit ?

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  12. What is the main advantage of having two eyes in front of the head ?

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  13. A person can see nearby objects clearly but distant objects appear blu...

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  14. In which defect of vision is (i) the far point nearer than infinity ? ...

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  15. A person can see distant objects clearly but nearby objects appear blu...

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  16. Which vision defect arises when the eyeball (i) shrinks and (ii) elong...

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  17. Which eye defect can be corrected using (i) convex lens and (ii) conca...

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  18. Where is the image formed if a person is suffering from (i) myopia and...

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  19. An aged person is having difficulty in seeing nearby objects clearly. ...

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  20. Bifocal lenses are used to correct which defect of vision ?

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