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A person can not see clearly objects beyond a distance of 1.2 m.Name the defect of vision he is suffering from.What would be the power of correcting lens used to restore proper vision?

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MODERN PUBLICATION-Optical Instruments-EXERCISE
  1. Describe the working of a prism binocular with a suitable diagram.

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  2. What is the special point about prism binoculars,though it is a pair o...

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  3. A person can not see clearly objects beyond a distance of 1.2 m.Name t...

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  4. A person cannot see object beyond 1.5 m distinctly . What type of lens...

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  5. The near point of a person suffering from hypermetropia is 75 cm. calc...

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  6. A farsighted person has a near point of 75 cm for one eye and a near p...

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  7. The near point of a person suffering from hypermetropia is 75 cm. calc...

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  8. The far point of a myopic person in 80 cm in front of the eye. What is...

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  9. A person with myopic eye cannot see objects beyond 1.2 m distinctly. W...

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  10. The far point of a myopic person is 80 cm. In front of the eye. What i...

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  11. The near point of a hypermetropia eye is 1 m find the power of the len...

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  12. A certain person can see clearly objects at a distnaces btween 20 cm a...

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  13. A certain nearsighted person cannot see objects clearly,when they are ...

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  14. A diamond cutter uses a jeweller's lens to eamine a diamond.If the foc...

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  15. Sherllock Homes looks at a fingerprint with a magnifying glass of powe...

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  16. A converging lens of power 25 D is used as a simple microscoe.Calculae...

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  17. A man with normal near point (25 cm) reads a book with small print usi...

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  18. A man with normal near point (25 cm) reads a book with small print usi...

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  19. In a compound microscope,an object is placed at a distance of 1.5 cm f...

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  20. The focal lengths of the objective and eye-piece of a compound microsc...

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