Home
Class 12
PHYSICS
In a capillary tube of radius 'R' a stra...

In a capillary tube of radius 'R' a straight thin metal wire of radius 'r' (`Rgtr)` is inserted symmetrically and one of the combination is dipped vertically in water such that the lower end of the combination Is at same level . The rise of water in the capillary tube is [T=surface tensiono of water `rho` =density of water ,g =gravitational acceleration ]

A

`T/((R+r)rhog)`

B

`(Rrhog)/(2T)`

C

`(2T)/((R-r)rhog)`

D

`((r-r)rhog)/T`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • SURFACE TENSION

    TARGET PUBLICATION|Exercise EVALUATION TEST|21 Videos

  • SURFACE TENSION

    TARGET PUBLICATION|Exercise CRITICAL THINKING|62 Videos

  • STATIONARY WAVES

    TARGET PUBLICATION|Exercise EVALUATION TEST|16 Videos

  • WAVE MOTION

    TARGET PUBLICATION|Exercise MCQ 7.1|61 Videos

Similar Questions

Explore conceptually related problems

In a capillary tube of radius 'R' a straight thin metal wire of radius ' r ' (R gt r) is inserted symmetrically and one end of the combination is at the same level . The rise of water in the capillary tube is

A glass rod of radius r_(1) is inserted symmetrically into a vertical capillary tube of radius r_(2) such that their lower ends are at the same level. The arrangement is now dipped in water. The height to which water will rise into the tube will be ( sigma = surface tension of water, rho = density of water)

When one end of a capillary tube is dipped vertically in water, the pressure below the meniscus of water is

Water rises to a height of 5 cm when a narrow glass tube is dipped vertically in it . If the tube is inclined at 60^(@) to the vertical , then the rise of water in the capillary tube will be

A capillary tube of area of cross-section A is dipped in water veritcally. Calculate the amount of heat evolved as the water rises in the capillary tunbe upto height h. The density of water is rho

The lower end of a capillary tube of radius r is placed vertically in water of density rho , surface tension S. The rice of water in the capillary tube is upto height h, then heat evolved is

If a capillary tube of diameter 0.4 m is dipped vertically into water, then the height to which water rises in the capillary tube will be ,

The radius of a capillary tube is 1.4 mm . Water of weight 6.28 xx 10^(-4) N rises in the capillary tube, when it is dipped vertically in water . What is the surface tension of water ?

A capillary tube of radius 0.5 mm is dipped in a vessel containing water. Calculate the height to which water will rise in the capillary tube. Take, surface tension of water =7.4 xx 10^(-3)" N/m".

TARGET PUBLICATION-SURFACE TENSION -COMPETITIVE THINKING
  1. Three liquids of densities rho1,rho2 and rho3 (with rho1gtrho2gtrho2) ...

    Text Solution

    |

  2. A capillary tube (A) is dipped in water. Another identical tube (B) is...

    Text Solution

    |

  3. In a capillary tube of radius 'R' a straight thin metal wire of radiu...

    Text Solution

    |

  4. In a capillary tube experiment, a vertical 30 cm long capillary tube i...

    Text Solution

    |

  5. A 20 cm long capillary tube is dipped vertically in water and the liqu...

    Text Solution

    |

  6. The height of water in a capillary tube os radius 2 cm is 4 cm . What ...

    Text Solution

    |

  7. A long capillary tube of radius 0.2 mm is placed vertically inside a b...

    Text Solution

    |

  8. A liquid rises to a height of 1.8 cm in a glass capillary A another g...

    Text Solution

    |

  9. In a capillary tube, water rises by 1.2mm. The height of water that wi...

    Text Solution

    |

  10. If NaCl is dissolved into water , then its surface tension

    Text Solution

    |

  11. With an increase in temperature , surface tension of liquid (except mo...

    Text Solution

    |

  12. The ratio of work done in blowing a liquid drop to radius R and to rad...

    Text Solution

    |

  13. A thin metal disc of radius r floats on water surface and bends the su...

    Text Solution

    |

  14. The surface tension of water is 0.07 N/m . Find the weight of water s...

    Text Solution

    |

  15. A capillary tube of radius r is immersed in water and water rises in t...

    Text Solution

    |

  16. When one end of the capillary is dipped in water, the height of wa...

    Text Solution

    |

  17. Two soap bubbles A and B are kept in a closed chamber where the air is...

    Text Solution

    |

  18. A certain number of spherical drops of a liquid of radius r coalesce t...

    Text Solution

    |

  19. Pressure inside two soap bubbles are 1.01 and 1.02 atmospheres. Ratio ...

    Text Solution

    |

  20. The execc pressure inside the first soap bubble is three times that in...

    Text Solution

    |