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Biology

Given below is a simplified diagrammatic representation of a defect of the human eye. Study the figure and answer the following questions.

Identify the defect (technical term). Mention two reasons for the above defect. Model Question Paper 1, Concise Biology Solutions ICSE Class 10.

(i) Identify the defect (technical term).

(ii) Mention two reasons for the above defect.

(iii) Draw a neat and labelled diagram for the “correction of the above mentioned defect” by using a lens. You must mention the name of the lens used.

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Answer

(i) Hyperopia

(ii) Two reasons for the above defect are:

  1. Shortening of the eyeball
  2. Lens is too flat

(iii) Convex lens is used for the correction of Hyperopia. The diagram is shown below:

Study the following diagram carefully and then answer the questions that follow. The diagram is depicting a defect of the human eye. Identify the defect shown in the diagram. Give two possible reasons for the above defect. Draw a neat labelled diagram to show how the above defect can be rectified. ICSE 2012 Biology Solved Question Paper.

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