Home
Class 11
PHYSICS
Viscous force on a small sphere of radiu...

Viscous force on a small sphere of radius r moving in a fluid varies directly with

A

`r^(2)`

B

r

C

`1/r`

D

`((1)/(r ))^(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • FRICTION IS SOLIDS AND LIQUIDS

    TARGET PUBLICATION|Exercise MCQ (CRITICAL THINKING)|66 Videos
  • FRICTION IS SOLIDS AND LIQUIDS

    TARGET PUBLICATION|Exercise MCQ (COMPETITIVE THINKING)|98 Videos
  • FORCE

    TARGET PUBLICATION|Exercise Evaluation Test|18 Videos
  • Gravitation

    TARGET PUBLICATION|Exercise Exercise|273 Videos

Similar Questions

Explore conceptually related problems

Force acting on a particle of mass m moving in straight line varies with the velocity of the particle as F=K//V K is constant then speed of the particle in time t

Spherical balls of radius 'R' are falling in a viscous fluid of viscosity 'eta' with a velocity 'v'. The retarding viscous force acting on the spherical ball is

Spherical balls of radius 'r' are falling in a viscous fluid of viscosity eta with a velocity 'v' .The retarding viscous force acting on the spherical ball is

The tangential force or viscous force on any layer of the liquid is directly proportional to the velcoity gradient dupsilon//dx. Then the direction of velcoity gradient is

The rate of change of surface area of a sphere of radius r when the radius is increasing at the rate of 2 cm/sec is proportional to: a) 1/r b) r c) 1/r^2 d) r^2

The rate of change of surface area of a sphere of radius r when the radius is increasing at the rate of 2 cm/sec is proportional to a)1/r b)1/r^2 c)r d)r^2

There is a small air bubble at the centre of a solid glass sphere of radius 'r' and refractive index mu . What wil be the apparent distance of the bubble from the centre of the sphere, when viewed from outside?

The M.I. of solid sphere of mass M and radius R about its diameter is

If p is density of the material of a sphere of radius R. Then its moment of inertia about its diameter is

TARGET PUBLICATION-FRICTION IS SOLIDS AND LIQUIDS -MCQ (EVALUATION TEST)
  1. Viscous force on a small sphere of radius r moving in a fluid varies d...

    Text Solution

    |

  2. A body while sliding went straight down an incline of 45^(@) to the ho...

    Text Solution

    |

  3. As an air bubble comes from the bottom of a lake to the top, its radiu...

    Text Solution

    |

  4. Four container of honey are shown in the figure. The pressure at depth...

    Text Solution

    |

  5. What is the maximum value of the force F such that the block shown in ...

    Text Solution

    |

  6. You want to apply a force on a box so that it moves with constant spee...

    Text Solution

    |

  7. A block of mass M is pulled along a horizontal surface by applying a f...

    Text Solution

    |

  8. Consider a car moving along a straight horizontal road with a speed of...

    Text Solution

    |

  9. Water and gasline surfaces are open to the atmosphere at the same elev...

    Text Solution

    |

  10. A U-tube containing a liquid moves with a horizontal acceleration a al...

    Text Solution

    |

  11. Equal volume of two immiscible liquids of densities rho and 2rho are f...

    Text Solution

    |

  12. Assertion : A horse has to pull a cart harder during the first few ste...

    Text Solution

    |

  13. Digboi mine in Assam is the deepest in India. In this mine the conditi...

    Text Solution

    |

  14. Consider a liquid at rest in a container which opens into atmosphere. ...

    Text Solution

    |

  15. At two points on a horizontal tube of varying cross section carrying w...

    Text Solution

    |

  16. An aquarium is filled with water. The lateral wall of the aquarium is ...

    Text Solution

    |

  17. The fire fighters have a jet attached to the held of their water pipes

    Text Solution

    |

  18. The nature of graph between terminal velocity of spherical body vs the...

    Text Solution

    |

  19. Assertion: The accumulation of snow on the wings of an acroplane reduc...

    Text Solution

    |

  20. The figure bwlow indicates flow of water through a tube of uniform cro...

    Text Solution

    |

  21. A water bgarrel having water up to a depth d is placed on a table of h...

    Text Solution

    |