Home
Class 14
MATHS
A cylinder with base radius 8 cm and hei...

A cylinder with base radius 8 cm and height 2 cm is melted to form a cone of height 6 cm. The radius of the cone will be:-
8 सेमी आधार त्रिज्या और 2 सेमी ऊँचाई वाले सिलेडर को 6 सेमी ऊंचा शंकु बनाने के लिए गलाया जाता है। शंकु की त्रिज्या क्या होगी?

A

6 cm

B

8 cm

C

4 cm

D

5 cm

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 cylinder with base radius of 8 cm and height of 2 cm is melted to form a cone of height 6 cm. The radius of the cone is …………. .

A cylinder with base radius of 8 cm and height of 2 cm is melted to form a cone of height 6 cm. The radius of the cone is (a) 4 cm (b) 5 cm (c) 6 cm (d) 8 cm

A metallic cylinder of radius 8 cm and height 2 cm is melted and converted into a right circular cone of height 6 cm . The radius of the base of this cone is

A hemisphere of radius 30 cm is moulded to form a cylinder of height 180 cm. The diameter of the cylinder is: 30 सेमी त्रिज्या वाले एक अर्धगोले को पिघलाकर 180 सेमी ऊंचाई वाला एक बेलन बनाया जाता है | इस बेलन का व्यास है:

A right circular solid cone of radius 3.2 cm and height 7.2 cm is melted and recast into a right circular cylinder of height 9.6 cm. What is the diameter of the base of the cylinder ? 3.2 सेमी त्रिज्या और 7.2 सेमी ऊंचाई वाले एक लम्ब वृत्तीय ठोस शंकु को पिघलाया जाता है तथा 9.6 सेमी ऊँचाई वाला एक लम्ब वृत्तीय बेलन बनाया जाता है | बेलन के आधार का व्यास कितना है ?

A metallic sphere of radius 6 cm is melted and recast into a sphere of cone of height 24 cm. Find the radius of base of the cone.

A cone of height 4 cm is melted and recast into a sphere of diameter 8 cm .Find the radius of the base of the cone.

A sector is formed by opening out a cone of base radius 8 cm and height 6 cm. Then the radius of the sector is (in cm)

The number of coins, each of radius 0.75 cm and thickness 0.2 cm, to be melted to make a right circular cylinder of height 8 cm and radius 3 cm, is 0.75 सेमी त्रिज्या तथा 0.2 सेमी मोटाई वाले सिक्कों, जिन्हें पिघलाकर 3 सेमी त्रिज्या तथा 8 सेमी ऊँचाई वाला एक लम्बवृत्तीय बेलन बनाया जाता है, तो सिक्के की संख्या होगी?

KIRAN PUBLICATION-MENSURATION-TYPE - V
  1. What part of a ditch 48 m long, 16.5 m broad and 4 m deep can be fille...

    Text Solution

    |

  2. If a hemisphere is melted and four spheres of equal volume are made, t...

    Text Solution

    |

  3. A cylinder with base radius 8 cm and height 2 cm is melted to form a c...

    Text Solution

    |

  4. A plane divides a right circular cone into two parts of equal volume. ...

    Text Solution

    |

  5. The radii of two solid iron sphere are 1 cm and 6 cm respectively. A h...

    Text Solution

    |

  6. The base of a right prism is a trapezium whose lengths of two parallel...

    Text Solution

    |

  7. The radius of a hemispherical bowl is 6 cm. The capacity of the bowl i...

    Text Solution

    |

  8. Length of each edge of a regular tetrahedron is 1 cm. Its volume is :

    Text Solution

    |

  9. The volume of a right circular cone which is obtained from a wooden cu...

    Text Solution

    |

  10. Base of a right prism is a rectangle, the ratio of whose lengh and bre...

    Text Solution

    |

  11. A right triangle with sides 9 cm, 12 cm and 15 cm is rotated abot the ...

    Text Solution

    |

  12. Volume of a right circular cylinder of height 21 cm and base radius 5 ...

    Text Solution

    |

  13. The volume of the largest right circular cone that can be cut out of a...

    Text Solution

    |

  14. By melting two solid metallic spheres of radii 1 cm and 6 cm a hollow ...

    Text Solution

    |

  15. Height of a prism-shaped part of a machine is 8 cm and its base is an ...

    Text Solution

    |

  16. A cuboidal shaped water tank, 2.1 m long ans 1.5 broad is hald filled ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |