Question

An iceberg is floating partially immersed in sea water. The density of sea water is $1.03gc{m}^{-3}$ and that of ice is $0.92gc{m}^{-3}$. The approximate percentage of total volume of iceberg above the level of sea water is

• A. 8
• B. 11
• C. 34
• D. 89

Answer 1

The correct option is B

11

$(V-\Delta V)\times 1.03\times g=V\times 0.92\times g$

or $\frac{V-\Delta V}{V}=\frac{0.92}{1.03}$

or $\frac{\Delta V}{V}=1-\frac{0.92}{1.03}=\frac{0.11}{1.03}$ or $\frac{\Delta V}{V}\times 100=\frac{11}{1.03}=11\%$