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An aluminium sphere of `20cm` diameter is heated from `0^(@)C` to `100^(@)C`. Its volume changes by (given that the coefficient of linear expanison for aluminium `(alpha_(Al) = 23 xx 10^(-6//0)C)`
A. `2.89 c c`
B. `9.28 c c`
C. `49.8 c c`
D. `28.9 c c`

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Correct Answer - D
`Deltav = v_(0) (3 alpha) DeltaT`
`= (4)/(3) pi(10)^(3) xx3xx23 xx 10^(-6) xx 100`
`Deltav = 28.9 c c`.

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