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`        An aluminium can of cylindrical shape contains 500 cm^3 of water. The area of the inner cross section of the can is 125 cm^2. All measurements refer to 10°C. Find the rise in the water level if the temperature increase to 80°C. The coefficient of linear expansion of aluminium= 23x10^-6/°C and average coefficient of volume expansion of water = 3.2x10^-4/°C.`
7 years ago

28 Points
```										Dear Cathy,
Ans:- Let the co-efficient of linear exoansion of aluminium is=a and the coeff of vol expansion of water=y The initial area of the bottom=A0 and initial vol of water is V0
The final area is=At=A0(1+2at)        ( Coeff of lateral expansion= 2 coeff of linear expansion)
The final vol of water=V0(1+yt)
The initial length of water is= 500/125=4cm
the final length is= V0(1+yt)/A0(1+2at)
Putting the values we get , the final length=4.0765 cm
Hence the increase in the water level is=(4.0765-4)=.0765 cm(ans)

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7 years ago
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