CBSE Class 10 Science 2015 Term II Delhi Set 1

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Question : 24
Total: 36
A student is unable to see clearly the words written on the blackboard placed at a distance of approximately 4m from him. Name the defect of vision the boy is suffering from. Explain the method of correcting this defect. Draw ray diagram for the :
(i) defect of vision and also
(ii) for its correction.
Solution:  
The boy is suffering from myopia or near sightedness and it can be corrected by using a concave lens of suitable power.
The required ray diagrams are given below :
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