SELECT * FROM question_mgmt as q WHERE id=3773 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=9 AND subId=16 AND chapterId=262 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 10th science The Human Eye and the Colourful World a student has difficulty reading the blackboard wh

Question:

A student has difficulty reading the blackboard while sitting in the last row. What could be the defect the child is suffering from? How can it be corrected?

Answer:

When a student is having difficulty to read the blackboard while sitting in the last row, then this condition showing the myopia defect in the child also known as near- sightedness. In this defect of eye, the image of farthest object does not formed on retina, only forms in the front of the retina in which  blurred image can be seen. This condition can be corrected by using the appropriate concave lens of suitable power. So, the eye will be able to see the correct image instead of blurred image, again on the retina.


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  • Answered by Ekta Mehta
  • 4 months ago

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