Advertisements
Advertisements
Question
Study the following diagram carefully and then answer the questions that follow. The diagram is depicting a defect of the human eye :

(i) Identify the defect shown in the diagram.
(ii) Give two possible reasons for the above defect.
Advertisements
Solution
(i) Farsightedness or hypermetropia.
(ii)
(a) The lens is flattened or less convex,
(b) Eyeball is short.
APPEARS IN
RELATED QUESTIONS
Name one defect of vision (or eye) which cannot be corrected by any type of spectacle lenses.
The defect of vision which cannot be corrected by using spectacles is:
(a) myopia
(b) presbyopia
(c) cataract
(d) hypermetropia
The near point of the eye of a person is 50 cm. Find the nature and power of the corrective lens required by the person to enable him to see clearly the objects placed at 25 cm from the eye?
Name an old age eye defect. Why is it caused?
Draw a neat labeled diagram to show how hypermetropia can be rectified.
Observe the given below the figure, correct it and explain and write about the concept depicted in this figure.

Given below is a diagram showing a defect of vision. Name the defect of vision and draw an accurately labelled diagram to correct this defect.

Correlate the given sequence:
Hypermetropia : Convex lens : ______ : Concave lens
Name the following:
Two kinds of accomodations.
