When a person suffering from long-sightedness looks at an object very close to him, the image distance of the eye lens is ______________that of a normal eye.
(a) lesser than
(b) equal to (c) greater than
(d) half of

lesser than

No worries! We‘ve got your back. Try BYJU‘S free classes today!

equal to

No worries! We‘ve got your back. Try BYJU‘S free classes today!

greater than

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

half of

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C
greater than

Explanation
In long-sightedness person is not able to see the near things clearly because the image of near object is formed behind the retina of eyes
Hence when is image is formed behind the retina of the eye the image distance would be increased.
So the correct answer would be option (c)

Suggest Corrections

Similar questions

Q. The maximum focal length of the eye-lens of a person is greater than its distance from the retina. The eye is
(a) always strained in looking at an object
(b) strained for objects at large distances only
(c) strained for objects at short distances only
(d) unstrained for all distances

Q. A person suffering from the eye-defect myopia (short-sightedness) can see clearly only up to a distance of 2 metres. What is the nature and power of lens required to rectify this defect?

Q. An object is placed at a distance of 30 cm from a converging lens of focal length 15 cm. A normal eye (near point 25 cm, far point infinity) is placed close to the lens on the other side. (a) Can the eye see the object clearly? (b) What should be the minimum separation between the lens and the eye so that the eye can clearly see the object? (c) Can a diverging lens, placed in contact with the converging lens, help in seeing the object clearly when the eye is close to the lens?

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

The near point of a long-sighted person is 50 cm from the eye.
(a) Can she see clearly an object at :
(i) a distance of 20 cm ? (ii) at infinity ?
(b) To read a book held at a distance of 25 cm, will she need converging or diverging spectacle lenses ?

Join BYJU'S Learning Program

When a person suffering from long-sightedness looks at an object very close to him, the image distance of the eye lens is ______________that of a normal eye. (a) lesser than (b) equal to (c) greater than (d) half of

When a person suffering from long-sightedness looks at an object very close to him, the image distance of the eye lens is ______________that of a normal eye.
(a) lesser than
(b) equal to (c) greater than
(d) half of