Given,
Initial level of water, V1=50 ml
Final level of water after silver is immersed in water,V2=62 ml
Understanding the problem
When a silver piece is immersed in water, it displaces the volume of water equal to its own volume so as to occupy the space of water.
Therefore,
Volume of silver piece = Volume of water displaced by silver when completely immersed in water
And,
Volume of displaced water = Final level of water - Initial level of water
So, volume of silver piece (V):
V = V2−V1
V = 62 ml - 50 ml = 12 ml = 12 cubic centimetre
(Since 1 ml = 1 cubic centimetre)