Home
Class 11
PHYSICS
A plate of area 30 cm^2 remains separate...

A plate of area `30 cm^2` remains separated from another large plate by means of a layer of glycerine 1 mm thick.If the co-efficient of viscosity is 20 poise, then what force is necessary to move that plate with a velocity of 2 cm .`s^-1`?

Text Solution

Verified by Experts

`0.008N`
Promotional Banner

Topper's Solved these Questions

  • VISCOSITY AND SURFACE TENSION

    CHHAYA PUBLICATION|Exercise EXERCISE (HOTS NUMERICAL PROBLEMS)|1 Videos
  • VISCOSITY AND SURFACE TENSION

    CHHAYA PUBLICATION|Exercise EXERCISE (ENTRANCE CORNER Assertion-reason type)|10 Videos
  • VISCOSITY AND SURFACE TENSION

    CHHAYA PUBLICATION|Exercise EXERCISE (PROBLEM SET-I)|13 Videos
  • VECTOR

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|19 Videos
  • WBCHSE QUESTION PAPER -2019

    CHHAYA PUBLICATION|Exercise SECTION - II ( GROUP -D)|10 Videos

Similar Questions

Explore conceptually related problems

A flat plate of area 10cm^2 is separated from a large plate by a layer of glycerine 1mm thick. If the coefficient of viscosity of glycerine is 20 poise, the force required to keep the plate moving with a velocity of 1cm/sec is

A plate of area 100 cm^2 is floating on oil of depth 2 mm. The coefficient of viscosity of oil is 15.5 poise. What horizontal force is required to move the plate horizontally with a velocity of 3 cm. s^-1 ?

The external diameter of the forepart of a bowl made of a copper plate of thickness 1 cm is 12 cm.If the weight of 1cc of copper be 12gm, then what will be the weight of the bowl ?

The conducting plates of a parallel plate capacitor are separated by 2 cm from each other. A dielectric slab (k =5) of thickness 1 cm is inserted between the two plates. The distance between the plates is now so changed that the capacitance of the capacitor remains the same. What will be the new distance between the plates?

The area of each plate of a parallel plate capacitor is 22 cm^2 and the plates are kept separated by a paraffin paper of thickness 1mm. Specific inductive capacity of paraffin paper is 2. What are the capacitance of the capacitor and the surface density of charge under a potential difference of 330V?

Two parallel air capacitors have their plate areas 100 cm^2" and "500 cm^2 , respectively. If they have the same charge and potential, and the distance between the plates of the first capacitor is 0.5 mm, what is the distance between the plates of the second capacitor?

A metal ball of radius 2 mm and density 10.5g. Cm^-3 is dropped in glycerine of coefficient of viscosity 9.8 dyn. Cm^-2.s and density 1.5 g. cm^-3. Find the terminal velocity (in cm. s^-1. ) of the ball.

An 8kg mass is suspended from one end of an iron wire of length 2 m and diameter 1mm. IF the young's modulus of iron is 2 times 10^12 dyn. cm^-2 , then what is the increase in length of the wire? [ g=980 cm.s^-2 ]

CHHAYA PUBLICATION-VISCOSITY AND SURFACE TENSION-EXERCISE (PROBLEM SET-II)
  1. A plate of area 30 cm^2 remains separated from another large plate by ...

    Text Solution

    |

  2. A spherical ball of steel of radius 2 mm is falling down through glyce...

    Text Solution

    |

  3. Two drops of water of the same size fall through air with a uniform ve...

    Text Solution

    |

  4. An air bubble of radius 0.4 is rising upwards through a liquid with a ...

    Text Solution

    |

  5. A large tank is filled with water up to a height h. Water emerges thro...

    Text Solution

    |

  6. In Millikan's oil drop experiment what is the terminal speed of an unc...

    Text Solution

    |

  7. In a test experiment on a model aeroplane in a wind tunnel, the flow s...

    Text Solution

    |

  8. The cylindrical tube of a spray pump has a cross section of 8.0 cm^2 ...

    Text Solution

    |

  9. A mercury drop of diameter 1xx10^-2 m breaks into 8 mercury droplets o...

    Text Solution

    |

  10. At the same temperature a drop of water of diameter 1 mm is broken int...

    Text Solution

    |

  11. Two drops of mercury, each having a radius R, coalesce to from a large...

    Text Solution

    |

  12. The dimensions of a soap film is 10 cmxx 6 cm. If it is increased to 1...

    Text Solution

    |

  13. 216 water droplets (radius of each is r) coalesce to form a large drop...

    Text Solution

    |

  14. How much will a liquid level be depressed inside a capillary tub of ra...

    Text Solution

    |

  15. When a capillary tube is dipped in water, water rises up to a height o...

    Text Solution

    |

  16. A U-tube is made up of two capillary tubes of bores 1 mm and 2 mm. The...

    Text Solution

    |

  17. In a capillary tube water rises up to a certain height and the upward ...

    Text Solution

    |

  18. What is the pressure inside a drop of mercury of radius 3.00 mm at roo...

    Text Solution

    |

  19. What is the excess pressure inside a bubble of soap solution of radius...

    Text Solution

    |