A) 3.0 m/s
B) 1.5 m/s
C) 1.0 m/s
D) 2.25 m/s
Correct Answer: C
Solution :
If the liquid is incompressible then mass of liquid entering through left end, should be equal to mass of liquid coming out from the right end. \[\therefore \ M={{m}_{1}}+{{m}_{2}}\] Þ \[A{{v}_{1}}=A{{v}_{2}}+1.5A\,.\,v\] Þ \[A\times 3=A\times 1.5+1.5A\,.\,v\] Þ \[v=1\ m/s\]
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