Home
Class 11
PHYSICS
Check the dimensional consistency of the...

Check the dimensional consistency of the poiseuille's formula for the laminar flow in a tube:
`V=(piR^(4)(p_1-p_2))/(8etal)`

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

Check the dimensional consistency of the equation (mV^2)/(r )= (Gm_(1)m_(2))/(r^2) .

V is the volume of a liquid flowing per second through a capillary tube of length l and radius r, under a pressure difference (p). If the velocity (v), mass (M) and time (T) are taken as the fundamental quantities, then the dimensional formula for eta in the relation V=(pipr^(4))/(8etal)

Check the dimensional consistency of the relations : (i) S= ut+(1)/(2)at^(2) (ii) (1)/(2)mv^(2)= mgh .

Check the dimensional consistency of the following equations : (i) upsilon = u +at (ii) s = ut +(1)/(2) at^2 (iii) upsilon^2 - u^2 = 2as

Check the dimensional consistency of the following equations : (i) de-Broglie wavelength , lambda=(h)/(mv) (ii) Escape velocity , v=sqrt((2GM)/(R)) .

Check the dimensional consistency of the relation upsilon = (1)/(I) sqrt((P)/(rho)) where I is length, upsilon is velocity, P is pressure and rho is density,

Find the dimensions of a in the formula (p+a/V^2)(V-b)=RT

Walli's Formula || Properties For P-1 to P- 4

When a liquid moves steadily under some pressure through a horizontal tube, it moves in the form of cylindrical layers coaxial to the ends of the tube. The velocity of different layers is different. The velocity of the layer is maximum along the axis of the tube and it decreases as one moves towards the walls of the tube. According to Poiseuille, the rate of flow of liquid through a horizontal capillary tube varies as the relation V alpha (pr^(4))/(eta l) where l and r are the length and radius of the tube and p is the pressure different between the ends of the tube and is the constant of proportionality. (pi pr^(4))/(8 etal) is dimensionally equivalent to (R is the resistance)

The volume of liquid flowing per second is called the volume flow rate Q and has the dimensions of [L]^(3)//[T] . The flow rate of a liquid through a hypodermic needle during an injection can be estimated with the following equation: Q=(piR^(n)(P_(2)-P_(1)))/(8etaL) The length and radius of the needle are L and R, respectively, both of which have the dimension [L]. The pressures at opposite ends of the needle are P_(2)andP_(1) , both of which have the dimensions of [M]//[L][T]^(2) . The symbol eta ' represents the viscosity of the liquid and has the dimensions of [M]//[L][T] . The symbol pi stands for pi and. like the number 8 and the exponent n, has no dimensions. Using dimensional analysis, determine the value of n in the expression for Q.

SL ARORA-Mechanical Properties of fluids-Exercise
  1. State Pascal's law. How can it be demonstrated?

    Text Solution

    |

  2. State the conditions for the equilibrium of floating bodies.Also discu...

    Text Solution

    |

  3. Check the dimensional consistency of the poiseuille's formula for the ...

    Text Solution

    |

  4. Define Stoke’s law. Define and derive an expression for terminal veloc...

    Text Solution

    |

  5. Give an example for a force proportional to velocity . Prove that term...

    Text Solution

    |

  6. Distinguish between streamline and turbulent flows. What do you unders...

    Text Solution

    |

  7. State and prove Bernoulli's theorem.

    Text Solution

    |

  8. Derive an expression for excess pressure inside a drop of liquid.

    Text Solution

    |

  9. Excess of pressure inside a soap bubble is

    Text Solution

    |

  10. What is capillarity? Derive an expression for the height to which the ...

    Text Solution

    |

  11. Define Stoke’s law. Define and derive an expression for terminal veloc...

    Text Solution

    |

  12. State Pascal’s law for fluids.

    Text Solution

    |

  13. Discuss the variation of g with height and depth.

    Text Solution

    |

  14. Define coefficient of viscosity and give its SI unit. On what factors ...

    Text Solution

    |

  15. Define terminal velocity. Show that the terminal velocity upsilon of a...

    Text Solution

    |

  16. In a streamline flow

    Text Solution

    |

  17. Write any two properties of streamlines.

    Text Solution

    |

  18. Derive equation of continuity.

    Text Solution

    |

  19. Units of coefficient of viscosity are

    Text Solution

    |

  20. Define terminal velocity and obtain an expression for the terminal vel...

    Text Solution

    |