a student is unable to see clearly the words written on the black board placed at a distance of approximately 3m from him name the defect of him
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The boy who can't see written on the board is suffering from Myopia.
The causes which cause Myopia are
• Due to the high converging power of the eye lens.
• Due to Being Eye ball to long .
It can be corrected by using a concave lens .
Because concave lens reduces the high converging power of lens because it is a diverging lens .
By using the concave lens the image is form on the Retina .
Hope it helps ☺
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