For a normal eye, provides a converging ...

For a normal eye, provides a converging power of 40Dand the least converging power of the eye lens behind the cornea is 20D.usingh this information, the retina and the corner eyes lens can be estimated to be

5 cm

2.5 cm

1.67 cm

1.5 cm

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For a normal eye, the far point is at infinity and the near point of distanct vision is about 25 cm in front of the eye. The cornea of the eye provides a converging power of about 40 dioptres, and the least converging power of the eye-lens behind the cornnea is about 20 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.

For a normal eye, the far point is at infinity and the near point of distanct vision is about 25 cm in front of the eye. The cornea of the eye provides a converging power of about 40 dioptres, and the least converging power of the eye-lens behind the cornea is about 20 dioptres. From this rough data estimate the range of accommodation (i.e., the range of converaging power of the eye-lens) of a normal eye.

Increase in the converging power of eye lens cause 'hypermetropia'.

The distance of the eye lens from the retina is x. For a normal eye, the maximum focal length of the eye lens

Assertion : Myopia is due to the increase in the converging power of eye lens. Reason : Myopia can be correct with the help of concave lens.

A normal eye has retina 2 cm behind the eye-lens. What is the power of the eye-lens when the eye is (a) fully relaxed, (b) most strained?

A young boy can adjust the power of his eye lens between 50 D and 60 D. His far point is infinity. A. What is the distance of his retina from the eye-lens? b. What is the near point?

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