A) 15%
B) 18%
C) 9%
D) 11%
Correct Answer: D
Solution :
[d] Let m and d be the mass and diameter of the sphere, then the density p of the sphere is given by \[\rho =\frac{mass}{volume}=\frac{m}{\frac{4}{3}\pi {{\left( \frac{d}{2} \right)}^{3}}}=\frac{6m}{\pi {{d}^{3}}}\] \[or\,{{\left( \frac{d\rho }{\rho }\times 100 \right)}_{\max }}=\left| \frac{dm}{m}\times 100 \right|+\left| \frac{3d(d)}{d}\times 100 \right|\] \[=2+3(3)=11%\]
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