Home
Class 11
PHYSICS
What should be the average velocity of a...

What should be the average velocity of a water in a tube of radius 0.005m, so that the flow is just turbulent? The viscosity of water is 0.001 Pa-s.

Promotional Banner

Topper's Solved these Questions

  • Mechanical Properties of fluids

    SL ARORA|Exercise Exercise|459 Videos
  • Mathematical tools

    SL ARORA|Exercise Exercise|20 Videos
  • Mechanical Properties of Solids

    SL ARORA|Exercise Example|113 Videos

Similar Questions

Explore conceptually related problems

What should be the average velocity of water in a tube of radius 2.5 mm so that the flow is just turbulent? Viscosity of water is 0.001 Pa s. Hint : For flow to be just turbulent R_(e) = 2000

The following observations were made in an experiment noith Poiseuille's apparatus: Calculate the average velocity of water in a tube of radius 0.05 cm so that the flow is turbulent. Take, viscosity of water = 0.001 Pa s.

What should be the average velocity of water in a tube of diameter 2 cm so that the flow is (i) laminar (ii) turbulent? The viscosity of water is 0.001 Pa-s. (for water pipes Rlt 2000 stream line flow, Rgt3000 turbulent flow)

What should be the average velocity of water in a tube of diameter 0.4 cm so that the flow is (i) laminar (ii)turbulent ? The viscosity of water is 10^(-3) Nm^(-2) s .

What should be the maximum average velocity of water in a tube of diameter 0.5 cm , so that the flow is laminar? The viscosity of water is 0.00125 Nsm^(-2) .

Calculate the average velocity of water in a tube of diameter 0.3 m so that the flow is (i) laminar (ii) turbulent. The viscosity of water is 10^(-3)" Nm"^(-2)s .

The maximum average velocity of water in a tube of diameter 2 cm so that the flow becomes laminer is [Viscosity of water is 10^(-3)N m^(-2)s^(-1)]

Calculate the critical velocity of water through a narrow tube of radius 0.3 mm. Coefficient of viscosity of water is 0.0011 SI units and density of water 1000"kg m"^(-3) . Take Reynolds number as 1000.

When a sphere of radius r_1=1.2mm moves in glycerin, the laminar flow is observed if the velocity of the sphere does not exceed v_1=23cm//s . At what minimum velocity v_2 of a sphere of radius r_2=5.5cm will the flow in water become turbulent? The viscosities of glycerin and water are equal to eta_1=13.9P and n_2=0.011P respectively.

Water flow at a speed of 7cm s^(-1) through a pipe of tube of radius 1.5 cm . What is the nature of the flow ? Cofficient of viscosity of water is 10^(-3) kg m^(-1) s^(-1) and its density is 10^(3) kg m^(-3)

SL ARORA-Mechanical Properties of fluids-Exercise
  1. What should be the average velocity of a water in a tube of radius 0.0...

    Text Solution

    |

  2. Find the pressure exerted at the tip of a drawing pin if it is pushed ...

    Text Solution

    |

  3. Atmospheric pressure is nearly 100 kPa. How large the force does the a...

    Text Solution

    |

  4. The force on a Phonograph needle is 1.2 N. the point has a circular cr...

    Text Solution

    |

  5. A cylinderical vessel contaning liquid is closed by a smooth piston of...

    Text Solution

    |

  6. The area of the smaller piston of a hydraulic press is 1cm^2 and that ...

    Text Solution

    |

  7. The average mass that must be lifted by a hydraulic press is 80 "kg".I...

    Text Solution

    |

  8. In a hydraulic press used for compressing cotton the area of the pisto...

    Text Solution

    |

  9. An automobile sack is lifted by a hydraulic jack that consists of two ...

    Text Solution

    |

  10. How much will a body of 70 N weight in water if it displaces 20 ml of...

    Text Solution

    |

  11. A solid weighs 6 kg in air. If its density is 2000 "kg" m^(3) what wil...

    Text Solution

    |

  12. A solid weighs 10 N in air. Its weight decreases by 2 N when weighed i...

    Text Solution

    |

  13. A copper cube of mass 0.50kg is weighed in water. The mass comes out t...

    Text Solution

    |

  14. A solid floats in water with 3//4 of its volume below the surface of w...

    Text Solution

    |

  15. A piece of wood of relative density 0.25floats in a pail containing oi...

    Text Solution

    |

  16. A boat having a length of 3 m and breadth of 2 m is floating on a lake...

    Text Solution

    |

  17. When a body of mass 240 kg is placed on a ice berg floating in sea wat...

    Text Solution

    |

  18. A cubical block of wood 10 cm on a side floats at the interface betwee...

    Text Solution

    |

  19. A Piece of brass (alloy of zinc and copper) weighs 12.9 g in air. When...

    Text Solution

    |

  20. A piece of iron floats in mercury. Given that the density of iron is 7...

    Text Solution

    |

  21. A metal cube of 5cm side and relative density 9 is suspended by thread...

    Text Solution

    |