Home
Class 14
MATHS
A ball of lead 4 cm in diameter is cover...

A ball of lead 4 cm in diameter is covered with gold. If the volume of the gold and lead area equal, then the thickness of gold (given `root(3)(2) = 1.259`] is approximately? 4 सेमी व्यास वाले लेड के गोले को स्वर्ण से कवर किया जाता है यदि स्वर्ण और लेड का आयतन बराबर हे तो स्वर्ण की मोटाई लगभग कितनी होगी (माना कि `root(3)(2) = 1.259`] )?

A

5.038 cm

B

5.190 cm

C

1.038 cm

D

0.518 cm

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • 2012 TIER-II PAPER(22)

    CHAMPION PUBLICATION|Exercise EXERCISE|100 Videos
  • 2013 TIER-II PAPER(21)

    CHAMPION PUBLICATION|Exercise EXERCISE|100 Videos
CHAMPION PUBLICATION-2013 TIER-II PAPER(20)-EXERCISE
  1. The base of a right prism is an equilateral triangle. If the lateral s...

    Text Solution

    |

  2. Perimeter of a rhombus is 2p unit and and sum of length of diagonals i...

    Text Solution

    |

  3. A ball of lead 4 cm in diameter is covered with gold. If the volume of...

    Text Solution

    |

  4. A large solid sphere is melted and moulded to form identical right cir...

    Text Solution

    |

  5. Two sides of a plots measuring 32 m and 24 m and the angle between the...

    Text Solution

    |

  6. 'a' and 'b' are two sides adjacent to the right angle of a right-angle...

    Text Solution

    |

  7. A conical cup is fined with ice-cream. The ice-cream forms a hemispher...

    Text Solution

    |

  8. A is the centre of circle whose radius is 8 units and B is the centre ...

    Text Solution

    |

  9. If a^2+b^2+c^2=ab+bc+ac then the value of (a+c)/b is:- यदि a^2+b^2+...

    Text Solution

    |

  10. If ab + bc + ca = 0, then the value of 1/(a^2-bc) + 1/(b^2-ca) + 1/(c^...

    Text Solution

    |

  11. If (2 + sqrt3) a = (2 - sqrt3) b =1 then the value of (1)/(a) + (1)/(...

    Text Solution

    |

  12. If 3x+3/x=1, then x^3+1/x^3+1 is? यदि 3x+3/x=1 तो x^3+1/x^3+1 का म...

    Text Solution

    |

  13. The factors (a ^(2) + 4b ^(2) + 4b - 4 ab - 2a - 8) are

    Text Solution

    |

  14. Area of the triangle formed by the graph of the straight lines x-y=0,x...

    Text Solution

    |

  15. The value of (1)/( a^(2) + ax + x^(2)) - (1)/( a^(2) - ax + x^(2)) + ...

    Text Solution

    |

  16. If 4x + 5y = 83 and 3x : 2y = 21 : 22 then y - x equals

    Text Solution

    |

  17. If x= 11, then the value of x^5 -12x^4 +12x^3 -12x^2+12x-1 is - यदि ...

    Text Solution

    |

  18. If p=999, then the value of p(p^2+3p+3) is - यदि p=999, तो p(p^2+3p+...

    Text Solution

    |

  19. Two chords of length 'a' meter and 'b' meter make an angle of 60^(@) a...

    Text Solution

    |

  20. In a triangle ABC, angle A+1/2 angle B+angle C= 140^@, then angle B is...

    Text Solution

    |