Density of ice is $\rho $ and that of water is $\sigma $. What will be the decrease in volume when a mass $M$ of ice melts
Medium
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(c)Volume of ice $ = \frac{M}{\rho }$, volume of water $ = \frac{M}{\sigma }$ .
$>$ Change in volume $ = \frac{M}{\rho } - \frac{M}{\sigma } = M\,\left( {\frac{1}{\rho } - \frac{1}{\sigma }} \right)$
$>$ Change in volume $ = \frac{M}{\rho } - \frac{M}{\sigma } = M\,\left( {\frac{1}{\rho } - \frac{1}{\sigma }} \right)$
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