An observer can see through a small hole on the side of the jar ( radius ) at a point of height of . When the jar is filled with a liquid up to a height of the same observer can see the edge at the bottom of the jar. If the R.I. of the liquid is , where is an integer the value of is
Option: 1 5
Option: 2 46
Option: 3 158
Option: 4 96
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