Physics, asked by rustrandom302, 16 days ago

A student cannot see clearly, a chart hanging on a wall placed at a distance of 10m from his eye. What kind of defect does the student has and calculate the focal length for the given defect of vision.

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Answered by vriya4029

Answer:

A student cannot able to see a chart hanging on a wall placed at distance of 3m from his eyes, it means he is suffering from Myopia defect. Myopia is a defect of an eye in which a defected person can't able to see distant object but he can able to see near object very clearly. Two causes of Myopia are as follow : 1. Elongation of eye ball 2. Decrease in focal length of eye lens This defect is corrected by using concave lens

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