Home
Class 11
PHYSICS
Calculate the force required to separate...

Calculate the force required to separate the galss plates of area `10^(-2)m^(2)` with a film of water 0.05 mm thickness between them (surface tension of waer `=70xx10^(-3)N//m)`)

A

`28N`

B

`112N`

C

`5.6N`

D

`11.2N`

Text Solution

Verified by Experts

The correct Answer is:
A

`F=(2TA)/(d)`
Promotional Banner

Topper's Solved these Questions

  • MECHANICAL PROPERTIES OF FLUIDS

    NARAYNA|Exercise Level 2 (C.W)|40 Videos
  • MECHANICAL PROPERTIES OF FLUIDS

    NARAYNA|Exercise Level 3|29 Videos
  • MECHANICAL PROPERTIES OF FLUIDS

    NARAYNA|Exercise C.U.Q|117 Videos
  • MATHEMATICAL REVIEW & PHYSICAL WORLD

    NARAYNA|Exercise C.U.Q|13 Videos
  • MECHANICAL PROPERTIES OF SOLIDS

    NARAYNA|Exercise LEVEL-II (H.W)|24 Videos

Similar Questions

Explore conceptually related problems

What is the force required to separate two glass plates of area 3 xx 10^(-2) m^(2) with a film of water of thickness 0.07 mm between them ? (Surface tension of water = 7 xx 10^(-2) N/m )

The minimum force required to separate a light glass plate of perimeter 5m from a water surface is (Given surface tension of water = 70 xx 10^(-3) N/m)

The force required to take away a flat circular plate of radius 2 cm from the surface of water, will be (the surface tension of water is 70 dyne/cm)

Work done is splitting a drop of water of 1 mm radius into 64 droplets is (surface tension of water =72xx10^(-3)j m^(2))

A glass tube of radius 0.5 mm is dipped in water. Calculate the rise of water in the tube.( Neglect mass of water in the mensiscus and take the angle of contact to be zero. Surface tension of water =70xx10^(-3) N m^(-1) )

Find the depth at which an air bubble of radius 0.7 mm will remain in equilibrium in water . Given surface tension of water = 7.0 xx 10^(-2) N/m.

Calculate the energy released when 1000 small water drops each of same radius 10^(-7)m coalesce to form one large drop. The surface tension of water is 7.0xx10^(-2)N//m .

A drop of liquid pressed between two glass plates spreads to a circle of diameter 10 cm. Thickness of the liquid film is 0.5 mm and surface tension is 70xx10^(-3)Nm^(-1) the force required to pull them apart is

A film is held on a ring of area 0.05 m^(2) of liquid of surface tension 0.05 N/m then the surface energy is

A film of water is formed between two straight paralel wires each 10 cm long and at seperation 0.5 cm . Calculate the work requied to increase 1mm distance between the wires. Surface tension of water =72xx10^(-3)N//m .

NARAYNA-MECHANICAL PROPERTIES OF FLUIDS-Level 1 (C.W)
  1. The velocity of small ball of mass M and density d(1) when dropped a c...

    Text Solution

    |

  2. The length of a rubber cord floating on water is 5 cm. The force neede...

    Text Solution

    |

  3. Calculate the force required to separate the galss plates of area 10^(...

    Text Solution

    |

  4. A thin wire ring of 3 cm radius float on the surface of liquid. The pu...

    Text Solution

    |

  5. A wire is bent in the form of a U-shape and a slider of negligible mas...

    Text Solution

    |

  6. A ring of inner and outer radii 8 and 9 cm is pulled out of water surf...

    Text Solution

    |

  7. In Fig(i) a thin film supports a small weight 3.5xx10^(-2)N The weight...

    Text Solution

    |

  8. Work of 6.0xx10^(-4)N joule is required to the done in increasing the ...

    Text Solution

    |

  9. The work done in increasing the radius of a soap bubble from 4 cm to 5...

    Text Solution

    |

  10. A mercury drop of radius 1 cm is sprayed into 10^(6) drops of equil s...

    Text Solution

    |

  11. 8000 identical water drops combine together to form a big drop. Then t...

    Text Solution

    |

  12. When two capillary tubes A and B are immersed in water , the heights o...

    Text Solution

    |

  13. A capillary tube of radius 0.25 mm is dipped vertically in a liquid of...

    Text Solution

    |

  14. When a clean lengthy capillary tube is dipped vertically in a beaker c...

    Text Solution

    |

  15. Capillary tubes of diameters 1,1.5,2 mm are are dipped vertically in t...

    Text Solution

    |

  16. A capillary tube is taken from the Earth to the surface of the moon. T...

    Text Solution

    |

  17. When a capillary tube is lowerd into water the mass of the water raise...

    Text Solution

    |

  18. A vessel has a small hole at its bottom. If water can be poured into i...

    Text Solution

    |

  19. A 20 cm long capillary tube is dipped in water. The water rises up to ...

    Text Solution

    |

  20. When a cylindrical tube is dipped vertically into a liquid the angle o...

    Text Solution

    |