Question

9. A person, with a myopic eye, cannot see objects beyond 1.2 m distinctly. What can be said about the likely size of his eyeball? State the nature of the corrective lens that is needed to restore his proper vision?​

Answer 1

Answer:

In the defect of vision called as myopia the eyeball increases in size. So, the person with a myopic eye which cannot see distant objects beyond 1.2 metre distinctly has an eyeball which is elongated in size. myopia can be corrected with the help of concave lens of appropriate focal length

Explanation:

Answer 2

Answer :

The eyeballs in this case would be elongated

The nature of the corrective lens is, diverging lens

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• Myopia is a type of eye defect where the person finds it hard to see things far away
• This is because the image of a object that is far away gets Formed before the retina this forming a blurd image
• This is because the rays are converting too much than the required level
• To correct this we use a diverging lens in such a way to make it that the image gets Formed on the retina

Here in this case the power of the lens can also be found,

→ P = 1/f

→ P = 1/(-1.2)

→ P = - 0.84 D