A man suffering with myopia cannot see object beyond 1m clearly. Alena of what power and focal length should be used to see an object clearly, which is placed at infinity?

A man suffering with myopia cannot see object beyond 1m clearly. Alena

1.	A man suffering with myopia cannot see object beyond 1m clearly. Alena of what power and focal length should be used to see an object clearly, which is placed at infinity?
Answer» it MIGHT be -20

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A man suffering with myopia cannot see object beyond 1m clearly. Alena of what power and focal length should be used to see an object clearly, which is placed at infinity?

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