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What is the smallest object the human eye can see

User Skovmand
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The smallest object which an average human can see with the naked eye close up is one tenth of a millimetre diameter 0.1mm. This is the ability of being able to see what colour it is, whether it is dust, sand, or a tiny full stop.
User Jitendra Chauhan
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Answer:

One tenth of a millimetre

Step-by-step explanation:

0.1mm.

User Winterized
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