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Why are we not able to see the things cl...

Why are we not able to see the things clearly when we come out of a drak room?

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Inside a dark room, pupil size becomes bigger to collect more amount of light. When we come out of the dark room, pupil takes some time to reduce its size so that lesser light goes into the eye. During this time interval, we are not able to see things clearly.
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ZEN PUBLICATION-THE HUMAN EYE AND THE COLOURFUL WORLD-ZEN ADDITIONAL QUESTIONS SECTION - VERY SHORT ANSWER TYPE QUESTIONS
  1. Which muscles help in changing the shape of the eye lens ?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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  18. Observe the given figure. Name the eye defect indicated in the figure ...

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  19. Shilpa is using spectacles. Is she eligible to pledge to donate her ey...

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  20. What is disporsion of light? Mention the colour that bonds the least a...

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