What is meant by power of lenses not to exceed 4d?
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Hey user !!
Here is your answer !!
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☆It means that power of lens should not exceed than 4D
☆ It is nearest point from human eye can see .
☆Power of lens is 25cm means 4 diaptre.
Hope it is satisfactory :-)
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Here is your answer !!
___________________
☆It means that power of lens should not exceed than 4D
☆ It is nearest point from human eye can see .
☆Power of lens is 25cm means 4 diaptre.
Hope it is satisfactory :-)
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