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An iceberg is...

Question

An iceberg is floating in sea water. The density of ice is $0.92 g m / c m^{3}$ and that of sea water is $1.03 g m / c m^{3}$ . What percentage of the iceberg will be below the surface of water

A

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C

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D

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Solution

The correct option is C
For the floatation of ice-berg, Weight of ice = upthrust due to displaced water
$V ρ g = V_{i n} σ g \Rightarrow (\frac{ρ}{σ}) V = (\frac{0.92}{1.03}) V = 0.89 V ∴ \frac{V_{i n}}{V} = 0.89 o r 89 %$

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