a student is playing with the specs of his father to concentrate the sun rays on a piece of paper for burning it. identify the defect of vision of his father. give the causes of defect and its correction. draw the ray diagram also.
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CONDITION: Farsightedness or Hyperopia (also called Hypermetropia)
CORRECTION: Use of Spectacles with convex (or converging lenses)
Explanation:
Condition where there is difficulty to clearly see nearby objects.
When this is caused due to old age, it is called Presbyopia.
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