Solve
Guides
0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Standard X
Physics
Question

The figure illustrates correction of vision for a certain defect of human eye. Identify the defect which is corrected here.
283868.png
  1. Myopia
  2. Hypermetropia
  3. Astigmatism
  4. Nigh Blindness

A
Nigh Blindness
B
Hypermetropia
C
Astigmatism
D
Myopia
Open in App
Solution
Verified by Toppr

The defect corrected here is Hypermetropia or far-sightedness. In Hypermetropia, light rays from nearby objects are focused by the eye-lens at a point behind the retina. To correct this defect, a convex lens of appropriate power is used. The presence of this convex lens helps the light rays to get focused on the retina.

Was this answer helpful?
1
Similar Questions
Q1
The figure illustrates correction of vision for a certain defect of human eye. Identify the defect which is corrected here.
283868.png
View Solution
Q2
The diagram alongside represents a certain defect of vision of the human eye.
Figure

(i) Name the defect.
(ii) Describe briefly the condition in the eye responsible for the defect.
(iii) Redraw the figure by adding a suitable lens correcting the defect. Label the parts through which light-rays pass.
(iv) What special advantage do human beings derive in having both eyes facing forward?
View Solution
Q3
An old man cannot see objects closer than 1 m from the eye clearly. Name the defect of vision he is suffering from. How can it be corrected? Draw ray diagram for the (i) defect of vision and also (ii) for its correction.
View Solution
Q4

Given below is a diagram showing a defect of human eye.

Study it and answer the following questions:

(1) Name the defect shown in figure.

(2) Give two possible reasons for this defect of eye in human being.

(3) Name the type of lens used to correct the eye defect.

(4) Draw a labelled diagram to show how the defect is rectified by using the lens.

View Solution
Q5

The defect of vision in which the eye-lens of a person gets progressively cloudy resulting in blurred:

(a) myopia

(b) night blindness

(c) cataract

(d) hypermetropia

View Solution