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The near point of a person having hyperm...

The near point of a person having hypermetropia is 60 cm in front of the eye. Find the focal length and power of lens required to enable him to see the objects clearly placed at 25 cm from the eye.

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MBD -HARYANA BOARD-THE HUMAN EYE AND THE COLOURFUL WORLD-EXAMPLE
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  2. A person with a myopic eye cannot see objects beyond 1.2 m distinctly....

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  3. The near point of a person having hypermetropia is 60 cm in front of t...

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  4. The near point of a hypermetropic eye is 1 m. What is the nature and p...

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  5. What is the least distance of distinct vision?

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  6. Write a function of each of: Retina

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  7. What is the function of the ciliary muscles?

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  8. What is the main function of the rods in the eye?

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  9. Why cats and bats are able to see at night?

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  11. What is basic cause of colour blindness?

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  12. In the given diagram which defect of the human eye is being corrected ...

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  13. The least distance of distinct vision for a normal person is about

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  14. The focal length of objective is chagned by:

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  15. Answer the following questions. What is the far point of a normal hu...

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  16. The human eye forms the image of an object at its

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  17. When light rays enter the eye, most of the refraction occurs at the

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  18. Most insensitive part of the eye is called :

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  19. Focal length of the eye lens can be adjusted by action of :

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  20. When light rays enter the eye, most of the refraction occurs at the

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