A) 20%
B) 35%
C) 10%
D) 11%
Correct Answer: C
Solution :
Let the volume of ice-berg is V and its density is \[\rho .\]If this ice-berg floats in water with volume \[{{V}_{in}}\]n inside it, then \[{{V}_{in}}\,\,\sigma g=V\rho g\] \[\Rightarrow \] \[{{V}_{in}}=\left( \frac{\rho }{\sigma } \right)V\][\[\sigma \]= density of water] \[\Rightarrow \]\[{{V}_{out}}=V-{{V}_{in}}=\left[ \frac{\sigma -\rho }{\sigma } \right]V\] \[\Rightarrow \] \[\frac{{{V}_{out}}}{V}=\left[ \frac{\sigma -\rho }{\sigma } \right]\] \[=\frac{1000-900}{1000}=\frac{1}{10}\] \[\therefore \] \[{{V}_{out}}=10%\] of V
You need to login to perform this action.
You will be redirected in
3 sec
