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Why does the eye-lens not have to do all...

Why does the eye-lens not have to do all the work of converging incoming light rays ?

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The correct Answer is:
Because cornea of the eye also converges light rays entering the eye

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LAKHMIR SINGH & MANJIT KAUR-THE HUMAN EYE AND THE COLOURFUL WORLD -Exercise
  1. (a) Which parts of the eye cause rays of light to converge on the reti...

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  2. An object is moved closer to an eye. What changes must take place in t...

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  3. Why does the eye-lens not have to do all the work of converging incomi...

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  4. Name one of the common defects of vision and the type of lens used to ...

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  5. Name the defect of vision in a person : (a) whose near point is more...

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  6. Which defect of vision can be rectified : (a) by using a concave len...

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  7. What type of lens is used to correct (a) hypermetropia (b) myopia ?

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  8. What is the other name of (a) myopia (b) hypermetropia ?

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  9. What is the scientific name of (a) short-sightedness, and (b) long-sig...

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  10. What kind of lens is used to correct (a) short-sightedness (b) long-s...

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  11. State whether the following statement is true or false : Short-sight...

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  12. Name the defect of vision in which the eye-lens loses its power of acc...

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  13. Name the defect of vision which makes the eye-lens cloudly resulting i...

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  14. What is the other name of old age hypermetropia ?

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  15. Name any two defects of vision which can be corrected by using spectac...

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  16. Name one defect of vision (or eye) which cannot be corrected by any ty...

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  17. What is the far point of a person suffering from hypermetropia (or sho...

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  18. Where is the near point of a person suffering from hypermetropia (or l...

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  19. A man can read the number of a distant bus clearly but he finds diffic...

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  20. A student sitting in the last row of the class-room is not able to rea...

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