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Fill in the following blanks with suitable words : A person is short-sighted if his eyeball is too ___ Spectacles with a ___ lens are needed. A person is long-sighted if his eyeball is too ___ Spectacles with a ___ lens are needed. These focus light rays exactly on to the ___ |
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Answer» Fill in the following blanks with suitable words : A person is short-sighted if his eyeball is too |
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