Home
Class 8
PHYSICS
Answer the following : An aluminium sh...

Answer the following :
An aluminium sheet of area 0.1 m^2 , initially at temperature 30 ⁰C is heated such that it reaches the temperature of 70 ⁰C . If the coefficient of areal expansion of aluminium is 46.2 x 10^-6 (1/⁰C) , find the change in area of the sheet .

Promotional Banner

Topper's Solved these Questions

  • LIFE CYCLE OF STARS

    TARGET PUBLICATION|Exercise EXERCISE|107 Videos
  • REFLECTION OF LIGHT

    TARGET PUBLICATION|Exercise EXERCISE|105 Videos

Similar Questions

Explore conceptually related problems

Solve the following problems : A silver square sheet of length 10 cm is heated from temperature 20 ⁰C to 70 ⁰C . If the change in ita area is 0.18 cm^2 , then find the coefficient of areal expansion of silver .

An aluminium rod and iron rod show 1.5 m difference in their lengths when heated at all temperature. What are their lengths at 0 ^@C if coefficient of linear expansion for aluminium is 24.5 xx 10^-6 //^@C and for iron is 11.9 xx 10^-6 //^@C

A metal rod of diameter 1 cm measures 50 cm in length at 65 °C. If the coefficient of linear expansion of the rod is 16 x 10-6/ °C, the length of the rod at 0 °C will be

An aluminium rod and iron rod show 1.5 m difference in their lengths when heated at all temperature. What are their lengths at 0^@ C if coefficient of linear expansion for aluminium is 24.5 xx 10^(-6) //""^@C and for iron is 11.9 xx 10^(-6) //""^@ C

Practice problems : Increase in the length of a steel rod is 0.06 cm . When its temperature is increased by 70 ⁰C . Find its initial length . [ codfficient of linear expansion of steel = 1.3 x 10^-5 (1/ ⁰C) ] .

Solve the following problems : What will be the increase in length of a steel rod of length 0.5 m , when its temperature is increased by 60 ⁰C ? The coefficient of linear expansion of steel is 0.000013 ( 1/⁰C) .

A piece of platinum wire has resistance of 2.5 Omega 0^@C . If its temperature coefficient of resistance is 4 xx 10^-3//^@C . Find the resistance of the wire at 80^@C .

A sheet of brass 50 cm long and 8cm broad at 0^@C . If the surface area at 100^@C is 401.57cm^2 , find the coefficient of linear expansion of brass

A black body at a temperature of 227 ^@C radiates heat at a rate of 5 cal//cm^2s . At a temperature of 727 ^@C , the rate of heat radiated per unit area will be

TARGET PUBLICATION-MEASUREMENT AND EFFECTS OF HEAT -EXERCISE
  1. Practice problems : Substances P and Q having specific heats in the ...

    Text Solution

    |

  2. Practice problems : A railway track is made from 25 m long iron rods...

    Text Solution

    |

  3. Which sources do we get heat from ?

    Text Solution

    |

  4. How is heat transferred ?

    Text Solution

    |

  5. Which effects of heat do you know ?

    Text Solution

    |

  6. Take three similar vessels . Let us call them A,B and C ( see figure b...

    Text Solution

    |

  7. Take three similar vessels . Let us call them A,B and C ( see figure b...

    Text Solution

    |

  8. What are potential and kinetic energies ?

    Text Solution

    |

  9. Take two steel vessels A and B of the same size . Fill some water in...

    Text Solution

    |

  10. Collect information about bimetallic strips and discuss in your class ...

    Text Solution

    |

  11. Answer the following question : Match the values of temperature in ⁰...

    Text Solution

    |

  12. Answer the following question : Fill in the blanks : A large amoun...

    Text Solution

    |

  13. Answer the following question : Name the following : The element w...

    Text Solution

    |

  14. Answer the following question : Complete the given analogy : clini...

    Text Solution

    |

  15. Answer the following question : State right or wrong . If wrong , wr...

    Text Solution

    |

  16. Answer the following : An aluminium sheet of area 0.1 m^2 , initiall...

    Text Solution

    |

  17. Answer the following : Write the types of thermometers shown in the ...

    Text Solution

    |

  18. Answer the following : Give reasons : Thermometers these days use ...

    Text Solution

    |

  19. Answer the following : Complete the following table :

    Text Solution

    |

  20. Answer the following : Prepare a concept chart explaining any five s...

    Text Solution

    |