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9 February, 15:33

What will water (or air) do when it is less dense than the surrounding water (or air) ? Why?

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  1. 9 February, 15:36
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    Water is denser medium and air is rare medium.

    Explanation:

    Denser medium (water) has a higher absolute refractive index than that of the other compared medium (air).

    Absolute refractive index = refractive index of a material relative to vacuum.

    Denser medium is the medium which velocity is law when rays going through it and rare medium is a medium which velocity is higher when rays going through. there fore we can obtain by Snell's law bellow equation,

    n1 / n2 = C1 / C2

    And also we can define reflective index by this manner

    1) Absolute reflective index

    Absolute reflective index = Velocity in vacuum / Velocity in media

    2) Relative refractive index = Velocity in 1st medium / Velocity in 2nd medium
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