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Near Point & Far Point

The muscles o...

Question

The muscles of a normal eye are least strained when the eye is focused on an object:

A

Far away from the eye

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B

Very close to the eye

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C

At about

25 c m

from the eye

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D

At about

1 m

from the eye

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Solution

The correct option is A Far away from the eye
The muscles of a normal eye are least strained when the eye is focused on an object far away from the eye
option $A$ is correct

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Similar questions

Q. The muscles of a normal eye are least strained when the eye is focussed on an object
(a) far away from the eye
(b) very close to the eye
(c) at about 25 cm from the eye
(d) at about 1 m from the eye

Q. You are given that the diameter of the eyeball is about

2.3

cm and a normal eye can adjust the focal length of its eye lens to see objects situated anywhere from

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cm to an infinite distance away from it.

What is the power of the (normal) eye lens, when ciliary muscles are fully relaxed?

What is the power of the (normal)eye lens, when ciliary muscles are in their maximum contract position?

The maximum variation in the power of the eye lens, when it adjusts itself, from the normal relaxed position to the position where the eye can see the nearby object clearly?

Q. For a normal eye, the far point is at infinity and the near point of distinct vision is about

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in front of the eye. The cornea of the eye provides a converging power of about

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dioptres, and the least converging power of the eye - lens behind the cornea is about

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dioptres. From this rough data estimate the range of accommodation (i.e., the range of converging power of the eye-lens) of a normal eye.

Q. The ciliary muscles can change the focal length of the eye lens. Find the ratio of focal lengths of the eye lens when it is focused on two different objects, one at a distance of 2 m and the other at a distance of 1m. The diameter of normal eye is 2.5 cm.

Q. When the eye is focused on an object very far away, the focal length of the eye-lens is

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