Home
Class 12
PHYSICS
An inverted U tube manometer shown in fi...

An inverted `U` tube manometer shown in figure is used to measure the difference in water level between the two tanks. Calculate this diference for the conditions indicated.

A

2 cm

B

4 cm

C

6 cm

D

8 cm

Text Solution

Verified by Experts

The correct Answer is:
B
Using pressure equation from first to second tank surface
` p _ a + h _ 1 rho g - 40 rho _1 g + 40 rho g = p _ a + h _ 2 rho g `
` h _ 2 rho g - h _ 1 rho g = 40 rho g - 40 rho _ 1 g `
as ` rho _ 1 = 0.9 rho `
` (h _ 2 - h _ 1 ) rho g = 40 rho g - 36 rho g `
` h_ 2 - h _ 1 = 4 cm `
Promotional Banner

Topper's Solved these Questions

  • LIQUIDS

    VMC MODULES ENGLISH|Exercise LEVEL -2|50 Videos

  • LIQUIDS

    VMC MODULES ENGLISH|Exercise JEE MAIN (LEVEL - 1 )|31 Videos

  • LIQUIDS

    VMC MODULES ENGLISH|Exercise LEVEL-0 ( Short Answer Type - II )|15 Videos

  • LAWS OF MOTION

    VMC MODULES ENGLISH|Exercise IMPECCABLE|53 Videos

  • MAGNETIC EFFECTS OF CURRENT

    VMC MODULES ENGLISH|Exercise JEE Advanced (Archive)|78 Videos

Similar Questions

Explore conceptually related problems

The manometer shown below is used to measure the difference in water level between the two tanks. Calculate this difference for the conditions indicated.

What is the difference between the two mice as shown as in the figure?

In a constant volume gas thermometer, the pressure of the working gas is measured by the difference in the levels of mercury in the two arms of a U-tube connected to the gas at one end. When the bulb is placed at the room temperature 27.0^0 C , the mercury column in the arm open to atmosphere stands 5.00 cm above the level of mercury in the other arm. When the bulb is placed in a hot liquid, the difference of mercury levels becomes 45.0 cm . Calculate the temperature of the liquid. (Atmospheric pressure = 75.0cm of mercury).

In a constant volume gas thermometer, the pressure of the working gas is measured by the differenced in the levels of mercury in the two arms of a U-tube connected to the gas at one end. When the bulb is placed at the room temperature 27.0^0 C , the mercury column in the arm open to atmosphere stands 5.00 cm above the level of mercury in the other arm. When the bulb is placed in a hot liquid, the difference of mercury levels becomes 45..0 Cm . Calculate the temperature of the liquid. (Atmospheric pressure = 75.0cm of mercury).

Two capillary tubes of diameters 3.0 mm and 6.0 mm are joined together to form a U -tube open at both ends. If the U -tube is filled with water, what is the difference in its levels in the two limbs of the tube ? Surface tension of water at the temperature of the experiment is 7.3xx10^(2)N//m . Take the angie of contact to be zero and density of water to be 10^(3)kg//m^(3) ( g=9.8m//s^(2) )

A tube of fine bore AB is connected to a manomeer M as shown. The stop cock S controls the flow in air. AB is dipped into a liquid whosw surface tension is sigma . On opening the stop cock for a while, a bubble is formed at B and the manometer level is recorded, showing a difference h in the levels in the two arms. If rho be the density of manometer liquid and r the radius of curvature of the bubble, then the surface tension sigma of the liquid is given by

A capillary tube of radius 'r' and height h_(1) is connected to a broad tube as shown in fig. The broad tube is gradually filled with drops water falling at equal intervals. Plot the changes in the levels of the water in both tubes with time and changes in the difference between these levels. Calculate the maximum water level in the broad-tube and maximum difference in levels. The surface tension of water is alpha .

A open ended mercury manometer is used to measure the pressure exerted by a trapped gas as shown in the figure. Initially manometer shows no difference in mercury level in both columns as shown in diagram. After sparking 'A' dissociates according to following reaction A(g)rarrB(g)+3C(g) If pressure of Gas "A" dissociates to 0.9 atm, then (Assume temperature to be constant and is 300 K)

Two loud speakers are being compared . One is perceived to be 32 times louder than the other. The difference in intensity levels between the two , when measured in decibels is

Assertion: An open-tube manometer is a useful instruement for measuring pressure differences. Reason: 1 bar = 10^(5) Pa.

VMC MODULES ENGLISH-LIQUIDS-LEVEL -1
  1. A tube 1 cm^2 in cross- section is attached to the top of a vessel 1 c...

    Text Solution

    |

  2. A square gate of size 1mxx1m is hinged at its mid point. A fluid of de...

    Text Solution

    |

  3. An inverted U tube manometer shown in figure is used to measure the di...

    Text Solution

    |

  4. In the figure shown, water is filled in a symmetrical container. Four ...

    Text Solution

    |

  5. The minimum horizontal acceleration of the container a so that pressur...

    Text Solution

    |

  6. A metal piece of mass 160 g lies in equilibrium inside a glass of wate...

    Text Solution

    |

  7. A cubical block of wood of edge a and density rho floats in water of d...

    Text Solution

    |

  8. In the arrangement as shown, m(B)=3m, density of liquid is rho and den...

    Text Solution

    |

  9. A wooden block in the form of a uniform cylinder floats with one-third...

    Text Solution

    |

  10. A hollow sphere of mass M = 50 kg and radius r=(3/(40pi))^(1//3)m is i...

    Text Solution

    |

  11. A sphere of radius R and made of material of relative density sigma h...

    Text Solution

    |

  12. A weightless rubber balloon has 100 gram of water in it. Its weight in...

    Text Solution

    |

  13. A beaker containing water is placed on the platform of a spring balanc...

    Text Solution

    |

  14. A body floats in a liquid contained in a beaker. The whole system as s...

    Text Solution

    |

  15. A wooden block is floating in a liquid 50 % of its volume is inside th...

    Text Solution

    |

  16. In the arrangement as shown, A and B arc two cylinders each of length ...

    Text Solution

    |

  17. A vessel contains oil (density = 0.8 g//cm^(3)) over mercury (density ...

    Text Solution

    |

  18. A piece of wood is floating in water kept in a bottle. The bottle is c...

    Text Solution

    |

  19. A wooden block is floating in a water tank. The block is pressed to th...

    Text Solution

    |

  20. A liquid of density rho0 is filled in a wide tank to a height h. A sol...

    Text Solution

    |