A student is unable to see the blackboard from at a distance of approximately 3 m from him in the defect of vision the boy is opening from state the possible causes of this effect and explain the method of correcting it
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defect is myopia
cause is long eye balls or excessive curvature of eye lens
correction using concave lens of suitable power
cause is long eye balls or excessive curvature of eye lens
correction using concave lens of suitable power
kharendra826:
Is 3m is far place...
yeah
he will not be able to see blackboard it is a far distance from him
obviously we dont see blackboard keeping it in front of our eyes
yeah
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Causw us myopia when a person cannot see the far objects
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