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Give the scientific names of the followi...

Give the scientific names of the following parts of the eye :
(a) carries signals from an eye to the brain.
(b) muscles which change the shape of the eye-lens.
(c) a hole in the middle of the iris.
(d) a clear window at the front of the eye.
(e) changes shape of focus a picture on the retina.

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The correct Answer is:
(a) Optic nerve (b) Ciliary muscles (c) Pupil (d) Cornea (e) Eye-lens
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LAKHMIR SINGH & MANJIT KAUR-THE HUMAN EYE AND THE COLOURFUL WORLD -Exercise
  1. Name the part of our eyes which helps us to focus near and distant obj...

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  2. Define the term "power of accommodation" of human eye.

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  3. Give the scientific names of the following parts of the eye : (a) ca...

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  4. Fill in the following blanks with suitable words : (a) Most of the r...

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  5. Why is normal eye not able to see clearly the objects placed closer th...

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  6. What changes take place in the shape of eye-lens : (a) when the eye ...

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  7. The eye of a person are focused (i) on a nearby object, and (ii) on a ...

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  8. What change is made in the eye to enable it to focus on objects situat...

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  9. How is the amount of light entering the eye controlled ?

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  10. What happens to the eye when you enter a darkened cinema hall from bri...

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  11. Why does it take some time to see objects in a dim room when you enter...

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  12. A person walking in a dark corridor enters into a brightly lit room : ...

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  13. Ciliary muscles of human eye can contract or relax. How does it help i...

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  14. Describe and explain, how a normal eye can see objects lying at variou...

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  15. There are two types of light-sensitive cells in the human eye : (a) ...

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  16. What are rods and cones in the retina of an eye ? Why is our night vis...

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  17. (a) How does the convex eye-lens differ from the ordinary convex lens ...

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  18. (a) What happens to the size of pupil of our eye (i) in dim light (ii)...

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  19. (a) Draw a simple diagram of the human eye and lebel clearly the corne...

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  20. What happens to the eye when you enter a darkened cinema hall from bri...

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