A person have clear vision between 50 cm and 100 cm. He used the lens to cure his myophia then due to the lens use where is the near point.
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The power of the lens is 2 D.
Explanation: Given that, The distance of the image v = -50 cm.
In the myopia, The person can not see the far objects but he can see clearly close objects. The distance of the object u = -25 cm.
Using lens formula. The power of the lens is.
Hence, The power of the lens is 2 D.
Explanation:
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