Even in absolutely clear water, a diver cannot see very clearly because (A) rays of light get diffused (B) velocity of light is reduced in water. (C) a ray of light passing through the water makes it turbid. (D)the focal length of the eye lens in water gets changed and the image is no longer focussed sharply on the retina.
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Answer:
B) velocity of light is reduced in water
Explanation:
Water is a denser medium and light goes slower than light goes in air.
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Explanation:
When light travels from one medium (e.g. air) to another (e.g. water) it is refracted, that is, its path is bent. This bending results from the fact that light travels at different speeds in different media. The refractive index of a substance refers to how much slower light travels in it compared to in a vacuum, and it increases (roughly) with density.
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