Home
Class 14
MATHS
If the lateral surface of right circular...

If the lateral surface of right circular cone is 2 times its base , then the semi-vertical angle of the cone must be :

A

`15^@`

B

`30^@`

C

`45^@`

D

`60^@`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • LOGARITHM

    QUANTUM CAT|Exercise QUESTION BANK|159 Videos

  • NUMBER SYSTEM

    QUANTUM CAT|Exercise QUESTION BANK|1091 Videos

Similar Questions

Explore conceptually related problems

Total Surface Area of A Right Circular cone

Curved (Lateral) Surface area of Right Circular cone

The circumference of the base of a right circular cone is 220 cm and its height 84 cm. The curved surface area of the cone is :

The radius of a right circular cone is 3 cm and its height is 4 cm. The total surface area of the cone is

The radius of the base of a solid right circular cone is 8 cm and its height is 15 cm. The total surface area of the cone is:

If the ratio of the circumference of the base of a right circular cone of radius r to its height is 3 : 1, then what is the area of the curved surface of the cone ?

The area of the base of a right circular cone is 314cm^(2) and its height is 15cm. Find the volume of the cone.

If the are of the base of a right circular cone is 3850cm^(2) and its height is 84 cm, find the slant height of the cone.

Q charge is uniformaly distributed over the same surface of a right circular cone of semi -vertical angle theta and height h The cone is uniformly rotated about its axis at angular velocity omega Calculated associated magnetic dipole moment .

QUANTUM CAT-MENSURATION-QUESTION BANK
  1. The perimeter of the figure given below correct to one decimal place i...

    Text Solution

    |

  2. The sum of the radii of the two circle is 140 cm and the difference be...

    Text Solution

    |

  3. If the lateral surface of right circular cone is 2 times its base , th...

    Text Solution

    |

  4. There is a pyramid on a base which is a regular hexagon of side 2a. If...

    Text Solution

    |

  5. The slant height of a conical tent made of canvas is (14)/(3) m . The ...

    Text Solution

    |

  6. A hemispherical basin 150 cm in diameter holds water one hundred and ...

    Text Solution

    |

  7. If BC passes through centre of the circle, then the area of the shaded...

    Text Solution

    |

  8. A river 3 m deep and 60 m wide is flowing at the rate of 2.4 km/h . Th...

    Text Solution

    |

  9. A cone whose height is 15 cm and radius of base is 6 cm is trimmed suf...

    Text Solution

    |

  10. If a solid right circular cylinder is made of iron is heated to increa...

    Text Solution

    |

  11. The base of a prism is a regular hexagon. If every edge of the prism...

    Text Solution

    |

  12. If the side of a square is 24 cm, then the circumference of its circum...

    Text Solution

    |

  13. An isosceles right triangle has area 112.5 m^(2). The length of its h...

    Text Solution

    |

  14. Two circles of unit radii, are so drawn that the centre of each lies o...

    Text Solution

    |

  15. If the right circular cone is separated into three solids of volumes V...

    Text Solution

    |

  16. Water flows at the rate of 10 m per minute from a cylindrical pipe 5 ...

    Text Solution

    |

  17. The length of four sides and a diagonal of the given quadrilateral are...

    Text Solution

    |

  18. If a regular square pyramid has a base of side 4 cm and height of 30 c...

    Text Solution

    |

  19. A cylinder circumscribes a sphere . The ratio of their volumes is :

    Text Solution

    |

  20. In triangle ABC,BC=8 cm, AC=15 cm and AB=17 cm. The length of the alti...

    Text Solution

    |