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A person with...

Question

A person with myopic eye cannot see objects beyond 1.2metre distinctly. What should be the nature of corrective lenses to restore proper vision?

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Solution

Hi Kumar!

The person should use a concave lens of power -0.833D
Cheers!!

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10.0 m

distinctly. What should be the type of corrective lens used to restore proper vision? Find the focal length and power of the lens?

Q. (a) Draw a diagram to show the formation of image of a distant object by a myopic eye. How can such an eye defect by remedied?
(b) State two reasons due to which this eye defect may be caused.
(c) A person with a myopic eye cannot see objects beyond a distance of 1.5 m. What would be the power of the corrective lens used to restore proper vision?

Q. (a) A student suffering from myopia is not able to see distinctly the objects placed beyond 5 m. list two possible reasons due to which this defect of vision may have arisen. With the help of ray diagrams, explain
(i) why the student is unable to see distinctly the objects placed 5 m from his eyes.
(ii) the type of the corrective lens used to restore proper vision and how this is correct by the use of this lens.

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