Home
Class 11
PHYSICS
A metal plate of area 500 cm^92) is kept...

A metal plate of area `500 cm^92)` is kept on a horizontal surface with a layer of oil of thickness `0.5` mm between them. The horizontal force required to drag the plate with a velocity of 2 cm/s is
(coefficient of viscosity `=0.9` kg/ms)

A

180 N

B

18 N

C

`0.018` N

D

`1.8 N`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • FRICTION IS SOLIDS AND LIQUIDS

    TARGET PUBLICATION|Exercise MCQ (EVALUATION TEST)|21 Videos

  • FRICTION IS SOLIDS AND LIQUIDS

    TARGET PUBLICATION|Exercise MCQ (CRITICAL THINKING)|68 Videos

  • FORCE

    TARGET PUBLICATION|Exercise Evaluation Test|16 Videos

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    TARGET PUBLICATION|Exercise Evaluation Test|12 Videos

Similar Questions

Explore conceptually related problems

A metal plate of area 10^(-3)m^(2) is placed on a liquid layer of thickness 0.8mm . The coefficient of viscosity of that liquid is 24 poise .Then the horizontal force required to move the plate with a velocity of 1cms^(-1) .

A metal plate of area 0.02m^(2) is lying on a liquid layer of thickness 10^(-3) m and coeffcient of viscosity 120 poise .Calcualate the horizontal force requirred to move the plate with a speed of 0.025ms^(-1)

A metal plate of area 10^(-2)m^(2) is placed on a liquid layer of thickness 2xx10^(-3)m . If the liquid has coefficient of viscosity 2 S.I. units the force required to move the plate with a velocity of 3(cm)/(s) is

There is a 1 mm thick layer of oil between a flat plate of area 10^(-2)m^(2) and a big plate. How much force is required to move the plate with a velocity of 1.5 cm//s^ . The coefficient of viscosity of oil is 1 poise

A circular metal plate of radius 4 cm rests on a layer of castor oil 2 mm thick, whose coefficient of viscosity is 16.5 Nsm^(-2). Calculate the horizontal force required to move the plate with a speed of 3 cm/s.

A metal plate 5cmxx5cm rests on layer of castor oil 1mm thick whose coefficient of viscosity is 1.55 Nsm^(-1) . Find the horizontal force required to move the plate with a speed of 2 cm^(-1) .

A metal plate of area 10^(3)" "cm^(2) rests on a layer o oil 6 mm thick. A tangential force of 10^(-2) N is appled on it to move it with a constant velocity of 6 cm s^(-1) . The coefficient of viscosity of the liquid is :-

A metal plate 0.4 m^(2) inarea is lying on a liquid layer of thickness 10^(-3) m and coefficient of viscosity 140 poise . Calculate the horizontal force needed to move the plate with a speed of 0.040 m^(2)

A block of mass 2 kg is kept on a rough horizontal floor an pulled with a force F. If the coefficient of friction is 0.5. then the minimum force required to move the block is :-

A metal plate ofarea 100 sq. cm, rests on a layer of oil 2mm thick. A force of 0.1 N applied parallel to the plate horizontally keeps it moving with uniform speed of 1cm/ s. What is the coefficient of viscosity of oil ?

TARGET PUBLICATION-FRICTION IS SOLIDS AND LIQUIDS -MCQ (COMPETITIVE THINKING)
  1. Velocity of water in a river is

    Text Solution

    |

  2. The velocity of water in river is 9 km/h of the upper surface . The ri...

    Text Solution

    |

  3. A metal plate of area 500 cm^92) is kept on a horizontal surface with ...

    Text Solution

    |

  4. Spherical balls of radius 'R' are falling in a viscous fluid of viscos...

    Text Solution

    |

  5. A gas bubble of 2 cm diameter rises through a liquid 1.75 gm cm^(-3) w...

    Text Solution

    |

  6. What will be the approximate terminal velocity of a rain drop of diamt...

    Text Solution

    |

  7. A solid ball of volume V is dropped in a viscous liquid. It e...

    Text Solution

    |

  8. A small spherical solid ball is dropped from a great height in a visco...

    Text Solution

    |

  9. A small metal ball of mass m is dropped in a liquid contained in a ves...

    Text Solution

    |

  10. A small sphere of mass m is dropped from a height After it has fallen ...

    Text Solution

    |

  11. The terminal speed of a sphere of gold (density = 19.5 kg m^(-3)) is 0...

    Text Solution

    |

  12. Two solid spheres of same metal but of mass M and 8M fall simultaneous...

    Text Solution

    |

  13. Two spheres of equal masses but radii r(1) and r(2) are allowed to fal...

    Text Solution

    |

  14. Two drops of the same radius are falling through air with a steady vel...

    Text Solution

    |

  15. The onset of turbulence in a liquid is determined by

    Text Solution

    |

  16. The dimensions of Reynold’s constant are

    Text Solution

    |

  17. The speed at which the flow of water in a long cylindrical pipe of dia...

    Text Solution

    |

  18. A horizontal pipeline carrying gasoline has a cross-sectional diameter...

    Text Solution

    |

  19. The water flows form a tap of diameter 1.25 cm with a rate of 5xx10^(-...

    Text Solution

    |

  20. Consider the following equation of Bernoulli's theorem. P + (1)/(2) ...

    Text Solution

    |