A marble at the bottom of a tumbler containing water to a depth 0.2m appears to be 0.04m raised above from the bottom.Calculate the refractive index of water.Name the phenomenon due to which the marble appears to rise update
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It is due to acid rain which is caused due to air pollution and its main contribute are pollutants like sulphur di oxide..
The answer should be appears at
= 0.008
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