A) 0.03 m
B) 0.3 m
C) 0.3 cm
D) 0.03 cm
Correct Answer: A
Solution :
According to question by force belong \[\operatorname{T}\left( 2\pi r \right)=h\rho \,gA\] \[\Rightarrow \,\,\,\operatorname{T}\left( 2\pi r \right)=h\rho \,g\left( \pi {{r}^{2}} \right)\] \[h=\frac{2T}{\rho \,gr}=\frac{2\times (75\times {{10}^{-\,3}})}{{{10}^{3}}\times 10\times (0.5\times {{10}^{-3}})}=0.03\,m\]You need to login to perform this action.
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