A child while playing with his father’s spectacles burnt a hole in a

1.	A child while playing with his father’s spectacles burnt a hole in a piece of them tissue paper by focusing the image of the Sun on at. a) Name the defect of vision his father is suffering form. b) List two causes of the defect.
Answer» a) Hypermetropia b) Two causes: (i) The focal length of the eye lens is too long (ii) The eye ball has become too small

A child while playing with his father’s spectacles burnt a hole in a piece of them tissue paper by focusing the image of the Sun on at. a) Name the defect of vision his father is suffering form. b) List two causes of the defect.

Answer»

a) Hypermetropia

b) Two causes:

(i) The focal length of the eye lens is too long

(ii) The eye ball has become too small

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A child while playing with his father’s spectacles burnt a hole in a piece of them tissue paper by focusing the image of the Sun on at. a) Name the defect of vision his father is suffering form. b) List two causes of the defect.

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