Home
Class 12
PHYSICS
A glass capillary tube of internal radiu...

A glass capillary tube of internal radius `r=0.25 mm` is immersed in water. The top end of the tube projects by `2 cm` above the surface of water. At what angle does the liquid meet the tube? Surface tension of water `=0.7Nm^(-1)`.

A

`theta=90^(@)`

B

`theta =70^(@)`

C

`theta =45^(@)`

D

`theta =35^(@)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • QUESTION-PAPERS-2014

    BITSAT GUIDE|Exercise PHYSICS|40 Videos

  • QUESTION-PAPERS-2016

    BITSAT GUIDE|Exercise PHYSICS|40 Videos

Similar Questions

Explore conceptually related problems

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

One end of a uniform glass capillary tube of radius r = 0.025 cm is immersed vertically in water to a depth h = 1cm. The excess pressure (in Nm^(-2) ) required to blow an air bubble out of the tube (Given , surface tension of water = 7 xx 10^(-2) Nm^(-1) , density of water = 10^(-3) k gm^(-3) and acceleration due to gravity = 10 ms^(-2) )

A vertical capillary tube with inside radius 0.25 mm is submerged into water so that the length of its part protruding over the water surface is equal to 25 mm . Surface tension of water is 73 xx 10^(-3) N/m and angle of contact is zero degree for glass and water , acceleration due to gravity 9.8 m/s^2. Then choose correct statement . where R is radius of menisus and h is height of water in capillary tube .

When a glass capillary tube of radius 0.015 cm is dipped in water, the water rises to a height of 15 cm within it. Assuming contact angle between water and glass to be 0°, the surface tension of water.is [pwaler = 1000 kg m^(-3) , g = 9.81 m s^^(-2) ]

One end of a glass capillary tube with a radius r=0.05cm is immersed into water to a depth of h=2cm .Excess pressure required to blow an air bubble out of the lower end of the tube will be (S.T of water =70"dyne"//cm ).Take g=980cm//s^(2) .

A capillary tube of radius 0.25 mm is submerged vertically in water so that 25 mm of its length is outside water. The radius of curvature of the meniscus will be (surface tension of water =75xx10^(-3) N/m)

If a capillary tube of radius 1 mm is immersed in water , the mass of water rising in the capillary tube is M . If the radius tube is doubled , then the mass of water , that rises in the capillary tube will be

The end of a capillary tube with a radius r is immerseed into water. What ammount of heat will be evolved when the water rises in the tube ? If surface tension of water 'T' density of water = rho . Given (T^(2))/(rhog) = (2)/(pi) .

A capillary tube of internal radius 2 xx 10^(-3) m immersed vertically in beaker containing a liquid rising in the capillary tube is 9 xx 10^(5) kg , the surface tension of the liquid is

BITSAT GUIDE-QUESTION-PAPERS-2015-PHYSICS
  1. In YDSE, light of wavelength lamda = 5000 Å is used, which emerges in ...

    Text Solution

    |

  2. The position of a projectile launched from the origin at t = 0 is giv...

    Text Solution

    |

  3. Water is flowing on a horizontal fixed surface, such that its flow vel...

    Text Solution

    |

  4. A load of mass m falls from a height h on to the scale pan hung from a...

    Text Solution

    |

  5. In an ore containing Uranium, the ratio of U^(238) to Pb^(206 nuceli i...

    Text Solution

    |

  6. A direct current of 5A is superimposed on an alternating current ...

    Text Solution

    |

  7. A plano-convex lens fits exactly into a plano-concave lens. Their plan...

    Text Solution

    |

  8. A thin rod of length 4l, mass 4 m is bent at the point as shown in the...

    Text Solution

    |

  9. One of the lines in the emission spectrum of Li^(2+) has the same wave...

    Text Solution

    |

  10. Two particles X and Y having equal charges, after being accelerated th...

    Text Solution

    |

  11. A glass capillary tube of internal radius r=0.25 mm is immersed in wat...

    Text Solution

    |

  12. A particle of mass 2m is projected at an angle of 45^@ with horizontal...

    Text Solution

    |

  13. A 2-m wide truck is moving with a uniform speed v(0)=8 ms^(-1) along a...

    Text Solution

    |

  14. A neutron moving with a speed v makes a head-on collision with a hydro...

    Text Solution

    |

  15. Vertical displacement of a plank with a body of mass 'm' on it is vary...

    Text Solution

    |

  16. A parallel plate capacitor of capacitance C is connected to a battery ...

    Text Solution

    |

  17. In the circuit below, the AC source the voltage V=20cos (omegat) volts...

    Text Solution

    |

  18. A constant voltage is applied between the two ends of a uniform metall...

    Text Solution

    |

  19. the frequency of a sonometer wire is 10 Hz. When the weight producing ...

    Text Solution

    |

  20. A long straight wire along the z-axis carries a current I in the negat...

    Text Solution

    |