A) 11%
B) 2%
C) 3%
D) 4%
Correct Answer: C
Solution :
[c] \[V=\pi {{r}^{2}}\ell \,\,\,\,\,\,\,\,\frac{\Delta V}{V}%=2\frac{\Delta r}{r}%+\frac{\Delta \ell }{\ell }%\] \[=2\times \frac{0.01}{2}\times 100%+\frac{0.1}{5}\times 100%=3%\]
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