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the human eye and the colourful world — Science STD 10 — Question

Gujarat BoardEnglish MediumSTD 10Sciencethe human eye and the colourful world2 Marks
Question
A student has difficulty in reading the blackboard while sitting in the last row. What could be the defect the child is suffering from? How can it be corrected?
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Answer

  • As the child cannot see distant objects clearly it means that he is suffering from myopia or near-sightedness.
  • In this case the child can see nearby objects clearly but cannot see far off objects distinctly as their images are formed before the retina.
  • To correct this defect, the child has to use spectacles with concave lens of suitable focal length.

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