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The near point of a person suffering fro...

The near point of a person suffering from hypermetropia is 75 cm. calculate the focal length and power of the lens required to enable him to read the newspaper which is kept at 25 cm form the eye.

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MODERN PUBLICATION-Optical Instruments-EXERCISE
  1. A person can not see clearly objects beyond a distance of 1.2 m.Name t...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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  19. A compound microscope consists of an objective lens of focal length 2....

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  20. The total magnification produced by a compound microscope is 20,while ...

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