A 14 year old student is not able to see clearly the question written on the black board placed at a distance of 5m from him a.name the defect of vision he is suffering from b.name the type of lens used to correct this defect c.name any 2 causes for this defect

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Solution

Dear student a) The defect is myopia (B) concave lens (c) Causes of myopia: Myopia is caused:â€”due to the elongation of the eyeball. â€”due to decrease in the focal length of the eye lens regards

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