Home
Class 11
PHYSICS
The radii of the two columne is U-tube a...

The radii of the two columne is U-tube are `r_(1)` and `r_(2)(gtr_(1))`. When a liquid of density `rho` (angle of contact is `0^@))` is filled in it, the level different of liquid in two arms is h. The surface tension of liquid is
`(g=` acceleration due to gravity)

A

`(rhoghr_1r_2)/(2(r_2-r_1))`

B

`(rhogh(r_2-r_1))/(2r_1r_2)`

C

`(2(r_2-r_1))/(rhoghr_1r_2)`

D

`(rhogh)/(2(r_2-r_1))`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • PRACTICE PAPERS

    NCERT FINGERTIPS|Exercise Practice Paper 3|50 Videos

  • PRACTICE PAPERS

    NCERT FINGERTIPS|Exercise Practice Paper 3|50 Videos

  • PHYSICAL WORLD

    NCERT FINGERTIPS|Exercise Assertion And Reason|10 Videos

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTIONS

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

The radii of two columns in a U tube are r_(1) and r_(2) (r_(1) gt r_(2)) . A liquid of density rho is filled in it. The contact angle of the liquid with the tube wall is theta . If the surface tension of the liquid is T then plot the graph of the level difference (h) of the liquid in the two arms versus contact angle theta . Plot the graph for angle theta changing from 0^(@) to 90^(@) . Assume the curved surface of meniscus to be part of a sphere.

In a U-tube the radii of two columns are respectively r_(1) and r_(2) and if a liquid of density d filled in it has level difference of h then the surface tension of the liquid is -

A capillary of the shape as shown is dipped in a liquid. Contact angle between the liquid and the capillary is 0^@ and effect of liquid inside the mexiscus is to be neglected. T is surface tension of the liquid, r is radius of the meniscus, g is acceleration due to gravity and rho is density of the liquid then height h in equilibrium is:

A beaker containing a liquid of density rho moves up with an acceleration a . The pressure due to the liquid at a depth h below the free surface of the liquid is.

If h is the rise of water in a capillary tube of radius r, then the work done by the force of surface tension is (rho is density g = ("acc")^(n) due to gravity )

Statement-1: The angle of contact of a liquid decrease with increase in temeperature Statement-2: With increase in temperature the surface tension of liquid increase.

A container having a liquid of density rho is moving downwards with acceleration g/2 . Find the pressure difference between two vertical points in the liquid separated by h

A capillary tube of radius r is lowered into a liquid of surface tension T and density rho . Given angle of contact =0^(@) . What is the potential energy acquired by the liquid in the capillary?

Two holes are made at depths h and 2h from the top. A liquid of density rho and height h is filled over another liquid of density 2rho . Speeds of liquid ejecting from two holes are say v_(1) and v_(2) . If density of lower liquid is increased

The absolute pressure at a depth h below the surface of a liquid of density rho is [Given P_(a) = atmospheric pressure, g = acceleration due to gravity]

NCERT FINGERTIPS-PRACTICE PAPERS-Practice Paper 2
  1. A uniform wire of length 20 m and weighing 5 kg hangs vertically. If ...

    Text Solution

    |

  2. The velocity of a body moving in a vertical circle of radius r is sqrt...

    Text Solution

    |

  3. Figure shows position and velocities of two particles moving under mut...

    Text Solution

    |

  4. How large must F be in the figure shown to give the 700 g block an acc...

    Text Solution

    |

  5. The radii of the two columne is U-tube are r(1) and r(2)(gtr(1)). When...

    Text Solution

    |

  6. The angle subtended by vector vecA = 4 hati + 3hatj + 12hatk with t...

    Text Solution

    |

  7. A solid cylinder rolls without slipping down a 30^@ slope. The minimum...

    Text Solution

    |

  8. The equation of state for 5 g of oxygen at a pressure P and temperatur...

    Text Solution

    |

  9. A weightless spring of length 60 cm and force constant 100 N m^(-1) is...

    Text Solution

    |

  10. A particle is executing simple harmonic motion of amplitude 5 cm and p...

    Text Solution

    |

  11. The P-V diagram of a gas undergoing a cyclic process ABCDA is shown in...

    Text Solution

    |

  12. Three stars A, B, C have surface temperatures T(A), T(B) and T(C). A a...

    Text Solution

    |

  13. A body of mass m accelerates uniformly from rest to v1 in time v2. As ...

    Text Solution

    |

  14. A solid sphere of uniform density and radius R applies a gravitational...

    Text Solution

    |

  15. A metal wire of length L1 and area of cross section A is ttached to a ...

    Text Solution

    |

  16. The average degrees of freedom per molecule for a gas are 6. The gas p...

    Text Solution

    |

  17. A thin circular ring of mass M and radius r is rotating about its axis...

    Text Solution

    |

  18. A bus is moving with a speed of 10 ms^-1 on a straight road. A scooter...

    Text Solution

    |

  19. A particle A is projected verically upwards. Another indentical partic...

    Text Solution

    |

  20. A car is initially at rest, 330 m away from a stationary observer. It ...

    Text Solution

    |