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Name the part of the eye : (a) which c...

Name the part of the eye :
(a) which controls the amount of light entering the eye.
(b) on which the image is formed.
(c) which changes the focal length of eye-lens.

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Verified by Experts

The correct Answer is:
(a) Iris (b) Retina (c) Ciliary muscles
NA
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LAKHMIR SINGH & MANJIT KAUR-THE HUMAN EYE AND THE COLOURFUL WORLD -Exercise
  1. What kind of lens is present in the human eye ?

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  2. Name two parts of the eye which refract light rays (or bend light rays...

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  3. Name the part of the eye : (a) which controls the amount of light en...

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  4. What is the name of : (a) the curved, transparent front surface of t...

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  5. Where is the image formed in a human eye ?

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  6. What is the function of the lens in the human eye ?

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  7. What job does the pupil of the eye do ?

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  8. How does the eye adjust to take account of an increase in brightness ?

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  9. Name that part of the eye which is equivalent to the photographic film...

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  10. Which part of the eye cotains cells which are sensitive to light ?

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  11. Name two types of cells in the retina of an eye which respond to light...

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  12. State whether the following statement is true or false : The image f...

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  13. What is the principal function of the eye-lens ?

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  14. Where does the greatest degree of refraction of light occur in the eye...

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  15. What changes the shape of lens in the eye ?

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  16. What do the ciliary muscles do when you are focusing on a nearby objec...

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  17. What is the least distance of distinct vision for a normal human eye ?

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  18. What is the : (a) far point of a normal human eye ? (b) near point...

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  19. What is the range of vision of a normal human eye ?

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  20. Name the part of our eyes which helps us to focus near and distant obj...

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