Home
Class 11
PHYSICS
A 5.0 cm long straight piece of thread i...

A 5.0 cm long straight piece of thread is kept on the surface of water. Find the force with which the surface on one side of the thread pulls it. Surface tension of water `=0.076Nm^-1`

Text Solution

Verified by Experts

The correct Answer is:
A, C
`L=5cm =5xx10^-2m`
`T=0.76N/m`
`F=T_1=0.76xx5xx10^-2`
`=3.8xx10^-3N`
Promotional Banner

Topper's Solved these Questions

  • SOME MECHANICAL PROPERTIES OF MATTER

    HC VERMA|Exercise Objective 2|7 Videos

  • SIMPLE HARMONIC MOTION

    HC VERMA|Exercise Exercises|58 Videos

  • SOUND WAVES

    HC VERMA|Exercise Exercises|89 Videos

Similar Questions

Explore conceptually related problems

Water is kept in a beaker of radius 5.0 cm. Consider a diameter of the beaker on the surface of the water. Find the fore by which the surface on one side of the diameter pulls the surface on the other side. Surface tension of water =0.075Nm^-1 .

A liquid is kept in a beaker of radius 4 cm. Consider a diameter of the beaker on the surface of the water. Find the force by which the surface on one side of the diameter pulls the surface on the other side. Surface tension of liquid =0.075 Nm^(-1)

A capillary tube of radius 0.50 mm is dipped vertically in a pot of water. Find the difference between the pressure of the water in the tube 5.0 cm below the surface and the atmospheric pressure. Surface tension of water =0.075Nm^-1

A rectangular glass plate of dimensions 5 cm xx 4 cm is placed flat on the surface of water. Find the downward force on the plate due to surface tension. Given surface tension of water = 0.073 N m^(-1)

A wire of mass 1g is kept horizontally on the surface of water. The length of the wire that does not break the surface film is (surface tension of water is 70dynecm^-1 )

A needle of length 5 cm is floating on the surface of water. Calculate the minimum force needed to lift the needle above the aurface of water. Surface tension of water is 0.073 N/m.

Find the excess pressure inside a liquid drop of radius 2 cm, if the surface tension of water is 0.073 N m^(-1)

Find the surface energy of water kept in a cylindrical vessel of radius 6.0 cm. Surface tension of water =0.075Jm^-2 .

A rectangular plate of dimension 6 cm xx 4cm and thickness 2mm is placed with its largest face flat on the surface of water. Find the downward force on the plate due to surface tension. Surface tension of water is 7.0 xx 10^(-2)Nm^(-1) .

HC VERMA-SOME MECHANICAL PROPERTIES OF MATTER-Exercises
  1. Find the increase in pressure required to decrease the volume of a wat...

    Text Solution

    |

  2. Calculate the apprroximate change in density of water in a lake at a d...

    Text Solution

    |

  3. A steel plate of face area 4 cm2 and thickness 0.5 cm is fixed rigidly...

    Text Solution

    |

  4. A 5.0 cm long straight piece of thread is kept on the surface of water...

    Text Solution

    |

  5. Find the excess pressure inside (a) a drop of mercury of radius 2 mm (...

    Text Solution

    |

  6. Consider a small surface area of 1 mm2 at the top of a mercury drop of...

    Text Solution

    |

  7. The capillaries shown in figure (14-E4) have inner radii 0.5 mm, 1.0 m...

    Text Solution

    |

  8. The lower end of a capillary tube is immersed in mercury. The level of...

    Text Solution

    |

  9. A barometer is constructed with its tube having radius 1.0 mm. Assume ...

    Text Solution

    |

  10. A capillary tube of radius 0.50 mm is dipped vertically in a pot of wa...

    Text Solution

    |

  11. Find the surface energy of water kept in a cylindrical vessel of radiu...

    Text Solution

    |

  12. A drop of mercury of radius 2 mm is split into 8 identical droplets. F...

    Text Solution

    |

  13. A capillary tube of radius 1 mm is kept vertical with the lower end in...

    Text Solution

    |

  14. The lower end of a capillary tube of radius 1 mm is dipped vertically ...

    Text Solution

    |

  15. Two large glass plates are placed vertically and parallel to each othe...

    Text Solution

    |

  16. Consider an ice cube of edge 1.0 cm kept in a gravity-free hall. Find ...

    Text Solution

    |

  17. A wire forming a loop is dipped into soap solution and taken out so th...

    Text Solution

    |

  18. A metal sphere of radius 1 mm and mass 50 mg falls vertically in glyce...

    Text Solution

    |

  19. Estimate the speed of verticaly falingn raindriops from the following ...

    Text Solution

    |

  20. Water flows at a speed of 6 cms^-1 through a tube of radius 1 cm. coe...

    Text Solution

    |