Home
Class 12
PHYSICS
An 8 kg metal block of dimensions 16 cm ...

An 8 kg metal block of dimensions 16 cm `xx` 8 cm `xx` 6 cm is lying on a table with its face of largest area touching the table. If `g= 10ms^(-2)`, then the minimum amount of work done in making it stand with its length vertical is

A

8 J

B

6.4 J

C

4 J

D

12.8 J

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • JEE MOCK TEST 4

    NTA MOCK TESTS|Exercise PHYSICS - SUBJECTIVE NUMERICAL|5 Videos

  • JEE MOCK TEST 6

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos

Similar Questions

Explore conceptually related problems

A 5 kg brick of dimensions 20cmxx10cmxx8cm is lying on the largest base. It is now made to stand with length vertical. If g=10m//s^(2) , then the amount of work done is

A 2kg brick of dimension 5cm xx 2.5 cm xx 1.5 cm is lying on the largest base. It is now made to stand with length vertical, then the amount of work done is : (taken g=10 m//s^(2) )

A solid cuboid with dimensions 18 cm xx 12 cm xx 8 cm is melted and turned into a cube. What is the length of its edge ?

A block of mass 4 kg and dimensions 10 cm xx 20 cm xx 30 cm rests on the floor. If g = 10 ms^(-2) , then the maximum pressure the block can exert on the floor is:

A block of wood of dimensions 5 cm x 20 cm x 10 cm is kept on a table top. The mass of the block is 2 kg. Acceleration due to gravity is 9.8 ms^2 . Find the pressure exerted by the wooden block on the table top.

A solid metallic block of dimensions 4 cm xx 6 cm xx 8 cm is melted and recast into solid cubical blocks of edge 2 cm each. The number of recasted cubical blocks will be .....................

A metre scale of mass 200 g, is lying on a horizontal table. What is the work done by student in making it stand vertically on one of its ends?

NTA MOCK TESTS-JEE MOCK TEST 5-PHYSICS
  1. The angular velocity of a particle is vec(w) = 4hati + hatj - 2hatk ab...

    Text Solution

    |

  2. A thermally insulated piece of metal is heated under atmospheric press...

    Text Solution

    |

  3. An 8 kg metal block of dimensions 16 cm xx 8 cm xx 6 cm is lying on a ...

    Text Solution

    |

  4. Assuming f to be the frequency of the electromagnetic wave correspondi...

    Text Solution

    |

  5. A particle of unit mass undergoes one-dimensional motion such that its...

    Text Solution

    |

  6. A massive vertical wall is approaching a man at a speed mu. When it is...

    Text Solution

    |

  7. In Young's double-slit experiment, the ratio of intensities of a brigh...

    Text Solution

    |

  8. If the distance between the Earth and the sun shrinks to half the pres...

    Text Solution

    |

  9. If r is the total radius and v is the orbital velocity of an electron ...

    Text Solution

    |

  10. A wire is bent in the form of a circular arc of radius r with a straig...

    Text Solution

    |

  11. Uniform rod AB is hinged at end A in horizontal position as shown in t...

    Text Solution

    |

  12. There are two radioactive substance A and B. Decay constant of B is tw...

    Text Solution

    |

  13. A student performs an experiment to determine the Young's modulus of a...

    Text Solution

    |

  14. An aircraft loops the loop of radius R = 500 m with a constant velocit...

    Text Solution

    |

  15. Given R(1) = 5.0 +- 0.2 Omega, and R(2) = 10.0 +- 0.1 Omega. What is t...

    Text Solution

    |

  16. Two plans mirrors are inclined to each other at some angle .A ray of l...

    Text Solution

    |

  17. Three charges Q, +q and + q are placed at the vertices of a right -ang...

    Text Solution

    |

  18. A binary star consists of two stars A(mass = 22 Ms) and B (mass = 1...

    Text Solution

    |

  19. Liquids A and B are at 30^(@) C and 20^(@) C, respectively. When mixed...

    Text Solution

    |

  20. A sample of 2kg monoatomic helium gas (assumed ideal) is taken through...

    Text Solution

    |