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प्रश्न
The kind of lens required to correct Myopia
Name the following:
The kind of lens required to correct near sightedness.
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उत्तर
Concave lens
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संबंधित प्रश्न
Name the defect of vision in a person:
whose near point is more than 25 on away.
Name the defect of vision in a person:
whose far point is less than infinity
What is the other name for
hypermetropia
Name the defect of vision which makes the eye-lens cloudy resulting in blurred vision.
To read a book held at a distance of 25 cm, will she need converging or diverging spectacle lenses?
A person cannot read newspaper placed nearer than 50 cm from his eyes. Name the defect of vision he is suffering from. Draw a ray diagram to illustrate this defect. List its two possible causes. Draw a ray diagram to show how this defect may be corrected using a lens of appropriate focal length.
What eye defect is hypermetropia? Describe with a ray diagram how this defect of vision can be corrected by using an appropriate lens.
Give Reason:
Older people require glasses to read and write.
Give Technical Term:
The path which responsible for protecting the eye from sweat.
A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power:
