Question

A block of ice is floating in a glass containing water. When the ice melts completely, the level of the water in the glass will ________.

• A. rise
• B. fall
• C. not change
• D. None of the above

Answer 1

The correct option is C not change

The density of ice is less than that of water. The volume of submerged ice is equal to $\frac{V_{ice}{\rho }_{ice}}{{\rho }_{water}}$ which is equal to volume of ice when it completely melts into water. So, level of water doesn't change, after ice melts.