CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Common Defects of the Eye

What is hyper...

Question

What is hypermetropia? State the two causes of hypermetropia. With the help of ray diagrams, show:
(a) the eye-defect hypermetropia
(b) correction of hypermetropia by using a lens

Open in App

Solution

Hypermetropia or long-sightedness is a common eye defect, in which a person is not able to see nearby objects whereas the farther objects appear clear to the person.

Two causes of hypermetropia:

(i) Eyeball being too short.
(ii) The increased focal length of the eye lens.

(a) Hypermetropic eye:

(b) Correction made with a convex lens for the hypermetropic eye:

Suggest Corrections

thumbs-up

11

Similar questions

Q. Draw three labelled ray-diagrams to show the defect of vision called hypermetropia and how it is corrected by using a lens. Also name the lens used.

Q. Explain with the help of a labelled ray diagram, the defect of hypermetropia and how it is corrected.

Q. (a) What is meant by the dispersion of white light? Describe the formation of the rainbow in the sky with the help of a diagram.
(b)What is hypermetropia? Draw ray diagrams to show the image formation of an object by:
(i) Hypermetropic eye
(ii) Correction made with a suitable lens for the hypermetropic eye.

Q. The defect hypermetropia can be corrected by using a ..................

Q. What is hypermetropia? What are the possible reasons of hypermetropia? How is hypermetropia corrected? Explain with figures.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

BIOLOGY

Watch in App

explore_more_icon

Explore more

Common Defects of the Eye

Standard X Biology

Join BYJU'S Learning Program

CrossIcon