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Human Eye and Colourful World — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceHuman Eye and Colourful World3 Marks
Question
Study the diagram given below, and answer the questions that follow it.
  1. Identify the defect of vision. Give reason for your answer.
  2. State two possible causes of this defect.
  3. How can we rectify this defect? Explain with a diagram.
✓

Answer

  1. Hypermetropia.
  2.  
  1. A focal length of the eye lens is too long.
  2. The eyeball becomes too small.
  1. Diagram for correction of the above defect:

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