Question

If the density of ice is $0.9gc{m}^{-3}$,The portion $X$ of an iceberg will remain below the surface of water in a sea. Find [$10X$]. (Density of sea water $=1.1gc{m}^{-3}$) {Where, [] is a step function}

• A. $1$
• B. $2$
• C. $4$
• D. $8$

Answer 1

Answer: (D)

$8$

Part of iceberg below water $=\frac{\text{Density of ice}}{\text{Density of sea water}}$
$\Rightarrow \frac{0.9}{1.1}=\frac{9}{11}th$ part of ice will be below sea water