NEET Physics Mechanical Properties of Fluids Questions Solved

An incompressible liquid flows through a horizontal tube as shown in the following fig. Then the velocity v of the fluid is

(a)    3.0 m/s                           (b) 1.5 m/s                     

 (c) 1.0 m/s                             (d) 2.25 m/s


(c) 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.

M=m1+m2Av1=Av2+1.5A.vA×3=A×1.5+1.5A.vv=1 m/s

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