can a human being see underwater without glasses ? It is possible? Define.
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can a human being see underwater without glasses ? It is possible? Define.
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for a normal human if water if clean , he also see in underwater example in swimming pool
So, when we open our eyes underwater, incoming light rays are hardly bent, or focused, at all. The inside lens bends the rays a little, but it can't make up for the lost corneal refraction, so the light that reaches the retina isn't focused and the underwater world looks blurry