A) 11,000
B) 5500
C) 550
D) 1100
Correct Answer: B
Solution :
Time = 5 min = 300 sec. Volume \[=15\,ltr.=15\times {{10}^{-3}}{{m}^{3}}\] Diameter \[=\frac{2}{\sqrt{\pi }}cm\] Area of tap \[=\pi {{\left( \frac{2}{\sqrt{\pi }}\times {{10}^{-2}} \right)}^{2}}={{10}^{-4}}{{M}^{2}}\] Velocity of water \[=\frac{V}{At}=\frac{15\times {{10}^{-3}}}{1\times {{10}^{-4}}\times 300}=\frac{1}{2}m/\sec \] \[{{R}_{w}}=\frac{\rho Vd}{\eta }\] \[=5649=5500\]You need to login to perform this action.
You will be redirected in
3 sec