Home
Class 11
PHYSICS
A glass hydrometer reads 9200 in a liqui...

A glass hydrometer reads 9200 in a liquid at `45^(@)C`. What would be the reading at `15^(@)C`? (Cubical expansivity of the liquid `=52.xx10^(-5)//K` and that of glass `=2.4xx10^(-5)//K`)

Text Solution

Verified by Experts

The correct Answer is:
`9186.338`
Promotional Banner

Topper's Solved these Questions

  • ERRORS AND THEIR MEASUREMENTS

    NN GHOSH|Exercise EXERCISES|17 Videos

  • FIRST LAW OF THERMODYNAMICS

    NN GHOSH|Exercise All Questions|39 Videos

Similar Questions

Explore conceptually related problems

A barometer having a brass scale reads 77.24 cm at a temperature of 20^(@)C . The scale is graduated to be accurate at 0^(@)C . What would be the readint at 0^(@)C ? Coefficient of cubical expansion of mercury =18xx10^(-5).^(@)C^(-1) and linear expansion of brass -19xx10^(-6).^(@)C^(-1)

A flask of volume 10^3 cc is completely filled with mercury at 0^@C The coefficient of cubical expansion of mercury is 180xx10^(-6)//^(@)C and heat of glass is 40xx10^(-6)//^(@)C . If the flask in now placed in boiling water at 100^@C how much mercury will overflow?

A small quantity of a liquid which dows not mix with water sinks to the bottom at 20^@ C, the densities of the liquid and water being 1021 and 990 kg//m^(3) , respectively. To what teperature must the mixture be uniformly heated in order that the liquid forms globules which just float on water ? the cubical expansion of the liquid and water over the temperature ranges is 85xx10^(-5)//K and 45xx10^(-5)//K respectively.

A common hydrometer reads specific gravity of liquids Compared to the 1.6 mark of the stem the mark 1.5 will be

A weight thermometer contains 52g of liquid at 10^(0)C . When it is heated to 110^(0)C,2 g of the liquid is expelled. The coefficient of real expansion of the liquid is [alpha_(g I) is 9 xx 10^(-6//0)C]

A flask cotaines 100c.c of a liquid at 10^(@)C . When it is heated to 110^(0)C increase in volume of the liquid appers to be 2 c.c. Find the coefficient of real expansion of the liquid. ( alpha of flask is 11 xx 10^(-6 //@)C )

(a) The brass scale of a barometer gives correct reading at 0^(@)C . Coefficient of linear expansion of brass is 2.0xx10^(-5)//^(@)C . The barometer reads 75cm at 27^(@)C . What is the atmospheric pressure at 27^(@)C ? (b) A barometer reads 75.0cm on a steel scale. The room temperature is 30^(@)C . The scale is correctly graduated for 0^(@)C . The coefficient of linear expansion of steel is alpha=1.2xx10^(-5)//^(@)C and the coefficient of volume expansion of mercury is gamma=1.8xx10^(-4)//^(@)C . Find the correct atmospheric pressure.

NN GHOSH-EXPANSION OF SOLIDS-All Questions
  1. A certain property eta varies according to the law eta=(alpha(t-t(0)))...

    Text Solution

    |

  2. A circular hole in an aluminium plate is 2.50cm at 0^(@)C. What is its...

    Text Solution

    |

  3. A steel metere scale isto be ruled so that the millimetre intervals ar...

    Text Solution

    |

  4. A weight thermometer contains 500g of mercury at 0^(@)C. If the temper...

    Text Solution

    |

  5. A piece of metal weighs 46 g in air and 30 g in lipuid of density 1.24...

    Text Solution

    |

  6. A vessel of volume V=0.03m^(3) contains an ideal gas at 0^(@)C. After ...

    Text Solution

    |

  7. A vessel of volume V contains n(1) moles of oxygen and n(2) moles of c...

    Text Solution

    |

  8. A steel rod is 3.000cm in diameter at 25^(@)C. A brass ring has an int...

    Text Solution

    |

  9. A circular hole in an aluminium plate has a diameter of 4cm at 0^(@)C....

    Text Solution

    |

  10. An iron scale is correct at 0^(@)C an at this temperature, a zinc rod ...

    Text Solution

    |

  11. If a clock with an uncompensated pendulum of steel keeps correct time ...

    Text Solution

    |

  12. The linear expansivity of glass is 8xx10^(-6)K^(-1) and cubical expans...

    Text Solution

    |

  13. A glass hydrometer reads 9200 in a liquid at 45^(@)C. What would be th...

    Text Solution

    |

  14. A vertical cylinder closed at both ends is divided into two parts by a...

    Text Solution

    |

  15. The pendulum of a clocl beats 1//2 a second at 20^(@)C. By how many se...

    Text Solution

    |

  16. As a result of temperature rise of 32^(@)C a bar with a crack at its c...

    Text Solution

    |

  17. A composite bar of length L=L(1)+L(2) is made from a bar of material 1...

    Text Solution

    |

  18. The coefficient of linear expansion varies linearly from alpha(1) and ...

    Text Solution

    |