Home
Class 11
PHYSICS
A barometer tube reads 76 cm of mercury....

A barometer tube reads 76 cm of mercury. If the tube is gradually inclined at an angle of `60^@` with vertical, keeping the open end immersed in the mercury reservoir, the length of the mercury column will be

A

152 cm

B

76 cm

C

38 cm

D

`38 sqrt3` cm

Text Solution

Verified by Experts

The correct Answer is:
A
`cos 60^@=H/l implies l= (h)/(1//2) =(76)/(1//2)` = 152 cm.
Promotional Banner

Topper's Solved these Questions

  • FLUID MECHANICS

    ERRORLESS|Exercise NCERT BASED QUESTIONS(PASCAL.S LAW AND ARCHIMEDES PRINCIPLE)|23 Videos

  • FLUID MECHANICS

    ERRORLESS|Exercise NCERT BASED QUESTIONS(FLUID FLOW)|51 Videos

  • ELASTICITY

    ERRORLESS|Exercise ASSERTION & REASON |10 Videos

  • FRICTION

    ERRORLESS|Exercise ASSERTION & REASON |8 Videos

Similar Questions

Explore conceptually related problems

A barometer tube reads 75 cm of Hg. If tube is : gradually inclined at an angle of 30^(@) with horizontal, keeping the open end in the mercury container, then find the length of mercury column in the barometer ■ tube

A barometer tube reads 76 cm of mercury. IFF the tube is gradually inclined keeping the open end immersed in the mercury reservoir, will the length of mercury column be 76 cm, more than 76 cm or less than 76 cm?

A mercury barometer reads 75cm in vertical position . If the tube is inclined by 60^(@) to the vertical, the length of the mercury in the tube will be

A barometer tube is inclined at an angle of 30^@ with horizontal direction. Calculate length of mercury column in tube if atmospheric pressure is 76 cm of mercury.

A capillary tube when immersed vertically in a liquid records a rise of 3cm.if the tube is immersed in the liquid at an angle of 60^(@) with the vertical, then find the length of the liqiud column along the tube.

Calculate the length of mercury column in a barometer tube which is inclined at an angle of 45^(@) with horizontal direction if the atmospheric pressure is 75 cm of mercury.

In a mercury barometer, if the tube containing mercury is tilted, then

A barometer tube contains a mixture of air and saturated water vopour in the space above the mercury column. It reads 70cm when the actual atmospheric pressure is 76cm of mercury. The saturation vapour pressure at roon tempature is1.0 cm of mercury, The tube is now lowered in the reservoir till the space above the mercury cloumn is reduced to half its origina volume. Find the reading of the barometer. Assume that the temperature remains constant.

A column of mercury is in the middle of horizontal tube of uniform cross section closed at both ends. The pressure of the enclosed air column on either side of the mercury is 75 cm of mercury column. When the tuve is placed vertical the length air below the mercury column is (3)/(5) th of that above it. if length of mercury column is 10n cm. find n.

A thin tube of uniform cross-section is sealed at both ends. It lies horizontally, the middle 5 cm containing mercury and the two equal end containing air at the same pressure P. When the tube is held at an angle of 60^@ with the vetical direction, the length of the air column above and below the mercury column are 46 cm and 44.5 cm respectively. Calculate the pressure P in centimeters of mercury. (The temperature of the system is kept at 30^@C ).

ERRORLESS-FLUID MECHANICS-ASSERTION AND REASON
  1. A barometer tube reads 76 cm of mercury. If the tube is gradually incl...

    Text Solution

    |

  2. Assertion: Pascal law is the working principle of hydraulic lift. Re...

    Text Solution

    |

  3. Assertion : The blood pressure in humans is greater at the feet than...

    Text Solution

    |

  4. Assertion : Hydrostatic pressure is a vector quantity. Reason : ...

    Text Solution

    |

  5. Assertion : To empty an oil tank, two holes are made. Reason : Oi...

    Text Solution

    |

  6. Assertion : A man sitting in a boat which is floating on a pond. If ...

    Text Solution

    |

  7. Assertion : A piece of ice floats in water, the level of water remai...

    Text Solution

    |

  8. Assertion: The velocity increases, when water flowing in broader pipe ...

    Text Solution

    |

  9. Assertion. A bubble comes from the bottom of a lake to the top. Reas...

    Text Solution

    |

  10. Assertion: The velocity of flow of a liquid is smaller when pressure i...

    Text Solution

    |

  11. Assertion: The shape of an automobile is so designed that its front re...

    Text Solution

    |

  12. Assertion : The size of the needle of a syringe controls flow rate b...

    Text Solution

    |

  13. Assertion: A fluid flowing out of a small hole in a vessel apply a bac...

    Text Solution

    |

  14. Assertion : For a floating body to be in stable equilibrium, its cen...

    Text Solution

    |

  15. Assertion: In taking into account the fact that any object which float...

    Text Solution

    |

  16. Assertion : A thin staindess steel needle can by floating on a still w...

    Text Solution

    |

  17. Assertion : Aeroplanes are made to run on the runway before take off...

    Text Solution

    |

  18. Assertion: Sudden fall of pressure of at a place indicates storm. R...

    Text Solution

    |

  19. Assertion : Inside parts of machine are jammed in winter . Reason :...

    Text Solution

    |

  20. Assertion : When two boats sails parallel in the same direction and ...

    Text Solution

    |

  21. Statement I: A raindrop after failing through some height attains a co...

    Text Solution

    |