Home
Class 14
MATHS
A hollow iron pipe is 21 cm long and ...

A hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm3, then the weight of the pipe is (a) 3.6 kg    (b) 3.696 kg    (c) 36 kg    (d) 36.9 kg

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • TRUE DISCOUNT

    RS AGGARWAL|Exercise All Questions|26 Videos

Similar Questions

Explore conceptually related problems

A hollow iron pipe of 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weights "8 g/cm"^(3) , then the weight of the pipe is

A hollow iron pipe is 28 cm long and its external diameter is 10 cm.If the thickness of the pipe is 2 cm and iron weighs 5g//cm^(3) , then the weight of the pipe is :

An iron pipe is 21 m long and its exterior diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weight is 8 g/cm' find the weight of pipe.

A hollow iron pipe is 21 cm long and its exterior diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8g//cm^(3) , then the weight of the pipe is (Take pi = (22)/(7) )

A hollow copper pipe is 22 cm long and its external diameter is 28 cm.If the thickness of the pipe is 3 cm and iron weighs 8.5 g/ cm^3 , then the weight of the pipe is closest to:

An iron pipe 20cm long has exterior diameter equal to 25cm .If the thickness of the pipe is 1cm, find the whole surface of the pipe.

A hollow cylindrical pipe is made of iron. Its external and internal radii are 8 cm and 7 cm respectively and it is 35 cm long. If 1 cm^3 iron weight 8g, then the weight of the pipe is.

Find the weight of a lead pipe 3.5m long,if the external diameter of the pipe is 2.4cm and the thickness of the leed is 2mm and 1 cubic cm of lead weighs 11gm.

RS AGGARWAL-VOLUME AND SURFACE AREAS-All Questions
  1. A cylindrical tube open at both ends is made of metal. The internal...

    Text Solution

    |

  2. What length of solid cylinder 2 cm in diameter must be taken to cas...

    Text Solution

    |

  3. A hollow iron pipe is 21 cm long and its external diameter is 8 cm....

    Text Solution

    |

  4. 1496 cm3 of metal is used to cast a pipe of length 28 cm. If the in...

    Text Solution

    |

  5. A milkman saves milk in two vessels, a cuboidal and the other a cyl...

    Text Solution

    |

  6. A circular cylinder can hold 61.6 c.c. of water. If the height of t...

    Text Solution

    |

  7. Which one of the following figures will generate a cone when rotate...

    Text Solution

    |

  8. The radius of the base and height of a cone are 3 cm and 5 cm respe...

    Text Solution

    |

  9. What is the weight of water contained in a conical vessel 21 cm dee...

    Text Solution

    |

  10. Find the slant height of the cone whose height is 4.8 cm and the di...

    Text Solution

    |

  11. The curved surface of a right circular cone of height 84 cm and bas...

    Text Solution

    |

  12. The curved surface of a right circular cone of height 15 cm and bas...

    Text Solution

    |

  13. What is the total surface area of a right circular cone of height 1...

    Text Solution

    |

  14. A right triangle with sides 3 cm, 4 cm and 5 cm is rotated about th...

    Text Solution

    |

  15. The slant height of a right circular cone is 10 m and its height is...

    Text Solution

    |

  16. If a right circular cone of height 24 cm has a volume of 1232 cm3, ...

    Text Solution

    |

  17. A conical tent is to accommodate 11 persons. Each persons must have...

    Text Solution

    |

  18. Area of the canvas cloth needed to erect a right conical tent of he...

    Text Solution

    |

  19. The slant height of a conical mountain is 2.5 km and the area of it...

    Text Solution

    |

  20. If the area of the base of a right circular cone is 3850 cm2 and it...

    Text Solution

    |