Home
Class 11
PHYSICS
A tube of radius r and sufficient height...

A tube of radius r and sufficient height is dipped in a liquid of surface tension S and density `rho`. Heat developed upto steady state will be
Note: `theta` is the contact angle

A

`(pi S^(2) cos^(2) theta)/(rho g)`

B

`(pi S^(2) cos^(2) theta)/(2rho g)`

C

`(2pi S^(2) cos^(2) theta)/(rho g)`

D

`(4pi S^(2) cos^(2) theta)/(rho g)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • PROPERTIES OF MATTER

    DC PANDEY|Exercise More than one option is correct|21 Videos
  • PROPERTIES OF MATTER

    DC PANDEY|Exercise Comprehension|32 Videos
  • PROPERTIES OF MATTER

    DC PANDEY|Exercise Integer|8 Videos
  • PROJECTILE MOTION

    DC PANDEY|Exercise Level - 2 Subjective|10 Videos
  • RAY OPTICS

    DC PANDEY|Exercise Integer type q.|15 Videos

Similar Questions

Explore conceptually related problems

The potential energy of the liquid of surface tension T and density rho that rises into the capillary tube is

A capillary tube of radius r is lowered into a liquid of surface tension T and density rho . Given angle of contact =0^(@) . The work done by surface tension will be

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?

When a capillary tube of radius r is dipped vertically in a liquid of surface tension T, the liquid rises to a height h in the tube above the level outside the tube . If the angle of contact is theta the density of the liquid is rho then the pressure difference between the points A and B is

The end of a capillary tube of radius r is immersed in water of surface tension T and density rho . How much heat will be evolved when water rises in the tube? [Hint: Heat evolved = work done by surface tension - gravitational energy stored in the standing column.]

A capillary tube of radius r is dipped in a liquid of density rho and surface tension S. if the angle of contanct is theta , the pressure difference between the two surface in the beaker and the capillary ?

Two capillary tubes of radius 0.5 mm and 1 mm when dipped in a liquid of surface tension 49 dyne / cm vertically , it is observed that the liquid level difference is found to be 1.25 cm in the tubes . Then the density of the liquid will be (theta = 0^(@))

A cappillary tube of radiue r is lowered into water whose surface tension is alpha and density d . The liquid rises to a height. Assume that the contact angle is zero. Choose the correct statement (s):

Two parallel glass plates are held vertically at a small separation d and dipped in a liquid of surface tension T , the angle of contact theta =0^@ and density rho . The height of water that climbs up in the gap between glass plates is given by

A long thin walled capillary tube of mass M and radius r is partially immersed in a liquid of surface tension T. The angle of contact for the liquid and the tube wall is 30^(@) . How much force is needed to hold the tube vertically? Neglect buoyancy force on the tube.

DC PANDEY-PROPERTIES OF MATTER-JEE Advanced
  1. A uniform rod OB of length 1m, cross-sectional areal 0.012 m^(2) and r...

    Text Solution

    |

  2. Water (density rho) is flowing through the uniform tube of cross-secti...

    Text Solution

    |

  3. A tube of fine bore AB is connected to a manomeer M as shown. The stop...

    Text Solution

    |

  4. A bucket water filled upto a height = 15 cm. The bucket is tied to a r...

    Text Solution

    |

  5. An open cubical tank was initially fully filled with water. When the t...

    Text Solution

    |

  6. Some liquid is filled in a cylindrical vessel of radius R. Let F(1) be...

    Text Solution

    |

  7. A glass capillary of length l and inside radius r(r lt lt l) is submer...

    Text Solution

    |

  8. The pressure at the bottom of an open tank of water is 3p where p is t...

    Text Solution

    |

  9. Figure shows a siphon. Choose the wrong statement. (p(0) = atmosp...

    Text Solution

    |

  10. A U-tube of cross section A and 2A contains liquid of density rho. Ini...

    Text Solution

    |

  11. A stream of liquid, set at an angle theta, is directed against a plane...

    Text Solution

    |

  12. A tube of small uniform cross section is used to siphon the water from...

    Text Solution

    |

  13. There are three different liquids, with densities rho(1),rho(2) and rh...

    Text Solution

    |

  14. A solid sphere of radius r is floating at the interface of two immisci...

    Text Solution

    |

  15. A hollow sphere of volume V is floating on water surface with half imm...

    Text Solution

    |

  16. The diagram shows a tall cylindrical container kept on a horizontal su...

    Text Solution

    |

  17. Air is blown through a pipe AB at a rate of 15 litres per minute. The ...

    Text Solution

    |

  18. A tube of radius r and sufficient height is dipped in a liquid of surf...

    Text Solution

    |

  19. A hollow object of volume V is immersed in a tank. The object is tied ...

    Text Solution

    |

  20. A bent tube of uniform cross section is mounted on a cart which is acc...

    Text Solution

    |