Home
Class 14
MATHS
A hollow cylindrical tube 20 cm long is ...

A hollow cylindrical tube 20 cm long is made of iron and its external and internal diameters are 8 cm and 6 cm respectively. the volume (in cubic cm) of iron used in making the tube is (Take `pi = 22/7`)
20 से.मी. लम्बी एक खोखली बेलनाकार ट्यूब लोहे की बनी है ओर उसका बाहरी ओर आन्तरिक व्यास क्रमशः 8 से.मी. और 6 से.मी. है। ट्यूब बनाने में प्रयुक्त लोहे का आयतन (घन से.मी. में) क्या होगा? (यह मानते हुए कि `pi = 22/7`)

A

1760

B

440

C

220

D

880

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MENSURATION

    KIRAN PUBLICATION|Exercise TYPE VI|47 Videos

  • MENSURATION

    KIRAN PUBLICATION|Exercise TYPE VII|60 Videos

  • MENSURATION

    KIRAN PUBLICATION|Exercise TYPE - IV|169 Videos

  • LCM AND HCF

    KIRAN PUBLICATION|Exercise Test Yourself |18 Videos

  • MISCELLANEOUS

    KIRAN PUBLICATION|Exercise TYPE-VI|15 Videos

Similar Questions

Explore conceptually related problems

A hollow cylindrical tube 20 cm long is made of iron and its external and internal diameters are 8 cm and 6 cm respectively. The volume (in cubic cm) of iron used in making the tube is (Taken pi=22//7 )

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.

The length of the metallic pipe is 7.56 m. Its external and internal radii are 2.5 cm and 1.5 cm respectively. If 1 cubic cm of the metal weigh 7.5 g, then the weight of the pipe is : ( Take pi = 22/7 ) धातु के पाइप की लंबाई 7.56 मीटर है। इसकी बाहरी और आंतरिक त्रिज्या क्रमशः 2.5 सेमी और 1.5 सेमी है। यदि धातु के 1 घन सेमी का वजन 7.5 ग्राम है, तो पाइप का भार ज्ञात कीजिये ?

The radii of two circular faces of the frustum of a cone of height 21 cm are 3 cm and 2 cm respectively. What is the volume of the frustum of the cone in cubic cm? (Take pi = 22/7 ) 21 सेमी ऊंचाई वाले शंकु के छिन्नक के दो वृताकार फलकों की त्रिज्या क्रमशः 3 सेमी और 2 सेमी है। घन सेमी में शंकु के छिन्नक का आयतन कितना होगा ?

The internal and external radii of a hollow hemispherical vessel are 6 cm and 7 cm respectively. What is the total surface area (in cm^2 ) of the vessel? एक खोखले गोलार्द्ध पात्र की आंतरिक और बाहरी त्रिज्याएं क्रमशः 6 सेमी व 7 सेमी है। पात्र का कुल पृष्ठीय क्षेत्रफल (वर्ग सेमी में) कितना है?

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) )

KIRAN PUBLICATION-MENSURATION-TYPE - V
  1. A cuboidal shaped water tank, 2.1 m long ans 1.5 broad is hald filled ...

    Text Solution

    |

  2. A solid sphere of radius 9 cm is melted to form a sphere of radius 6 c...

    Text Solution

    |

  3. A hollow cylindrical tube 20 cm long is made of iron and its external ...

    Text Solution

    |

  4. If the areas of three adjacent faces of a rectangular box which meet a...

    Text Solution

    |

  5. A cylindrical pencil of diameter 1.2 cm has one of its end sharpened i...

    Text Solution

    |

  6. A hemispherical bowl of internal radius 9cm, contains a liquid. This l...

    Text Solution

    |

  7. A rectangular water tank is 80m x 40 m.Water flows into it through a p...

    Text Solution

    |

  8. A solid cylinder has the total surface area 231 sq. cm. If its curved ...

    Text Solution

    |

  9. A right circular cylinder having diameter 21 cm and height 38 cm s ful...

    Text Solution

    |

  10. The sides of a rectangle with dimension 7 cm xx 11 cm are joined to fo...

    Text Solution

    |

  11. A spherical aquariam can accommodate 11 fishes, and each fish requires...

    Text Solution

    |

  12. The volume of a right rectangular pyramid is 220 m^(3). What is the he...

    Text Solution

    |

  13. The radius of a wire is decreased to one-third. If volume remains the ...

    Text Solution

    |

  14. A prism with a right triangular base is 25 cm high. If the shorter sid...

    Text Solution

    |

  15. The ratio of the volume of a cube to that of a sphere which will fit i...

    Text Solution

    |

  16. On a rainy day, 60 cm of rain is recorded in a region. What is the vol...

    Text Solution

    |

  17. How many hemispherical balls can be made from a cylinder 56 cm high an...

    Text Solution

    |

  18. The number of coins, each of radius 0.75 cm and thickness 0.2 cm, to b...

    Text Solution

    |

  19. A sphere of radius 5 cm is melted to form a cone with base of same rad...

    Text Solution

    |

  20. The diameters of two cylinders are in the ratio 3:2 and their volumes ...

    Text Solution

    |