The power of accommodation of normal vision is about

1 dioptre

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2 dioptres

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3 dioptres

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4 dioptres

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Solution

The correct option is D
4 dioptres

The ability of the eye to form an image on the retina by adjusting the focal length of the lens in the eye based on the position of the object is called the power of accommodation. For a person having normal vision, its about 4 dioptres.

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Similar questions

Q. The power of three lenses A, B, and C are 1, 2 and 3 dioptre respectively. What is the power of the combination of these lenses?

Question 8
Which of the following statements is true?
(a) A convex lens has 4 dioptre power having a focal length 0.25 m.
(b) A convex lens has -4 dioptre power having a focal length -0.25 m.
(c) A concave lens has 4 dioptre power having a focal length 0.25 m.
(d) A concave lens has 4 dioptre power having a focal length -0.25 m.

Q. Two thin lenses, when in contact, produce a combined power +10 dioptre. When they are 0.25 m apart, the power reduce to +6 dioptre. The power of the lenses in dioptre, are:

Q. Define 1 dioptre power of a lens.

A person needs a lens of power –5.5 dioptres for correcting distant vision, for correcting his near vision he needs a lens of power +1.5 dioptre. What is the focal length of the lens required and lens type required for correcting 1. distant vision, 2. near vision. [3 MARKS]

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The power of accommodation of normal vision is about

The correct option is D 4 dioptres The ability of the eye to form an image on the retina by adjusting the focal length of the lens in the eye based on the position of the object is called the power of accommodation. For a person having normal vision, its about 4 dioptres.

The correct option is D
4 dioptres

The ability of the eye to form an image on the retina by adjusting the focal length of the lens in the eye based on the position of the object is called the power of accommodation. For a person having normal vision, its about 4 dioptres.