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Why is normal eye not able to see clearl...

Why is normal eye not able to see clearly the objects placed closer than 25 cm ?

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Why is a normal eye not able to see clearly the objects placed closer than 25 cm?

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Why is a normal eye not able to see clearly the objects placed than 25 cm ?

With the help of ciliary muscles the human eye can change its curvature and thus alter the focal length of its lens. State the changes that occur in the curvature and focal length of the eye lens while viewing (a) a distance object, (b) nearby objects. Explain, why a normal eye is not able to see distincly the objects placed closer than 25 cm, without putting any strain on the eye.

With the help of ciliary muscles the human eye can change its curvature and thus alter the focal length of its lens. State the changes that occur in the curvature and focal length of the eye lens while viewing nearby objects. Explain why a normal eye is not able to see distinctly the objects placed closer that 25 cm, without putting any strain on the eye.

A normal eye is not able to see objects closer than 25 cm because

A normal eye is not able to see objects closer than 25 cm because

A person with a myopic eye cannot see clearly the objects placed beyond 1.5 m. Mention two possible reasons due to which this defect may arise. With the help of ray diagrams show: (a) Why is he unable to see clearly the objects placed beyond 1.5 m from his eye, and (b) What should be the type of the corrective lens used to restore proper vision and how this effect is corrected by the use of this lens?

A person cannot see the objects distinctly, when placed at a distance less than 100 cm . What is the power of the spectacles that he should use to see clearly the objects placed at 25 cm ?

A person cannot see the objects distinctly, when placed at a distance less than 100 cm . What is the power of the spectacles that he should use to see clearly, the objects placed at 25 cm ?

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