Home
Class 11
PHYSICS
The length of a rod is 20 cm and area of...

The length of a rod is `20 cm` and area of cross-section `2 cm^(2)`. The Young's modulus of the material of wire is `1.4 xx 10^(11) N//m^(2)`. If the rod is compressed by 5 kg-wt along its length, then increase in the energy of the rod in joules will be

A

`8.57 xx 10^(-6)`

B

`22.5 xx 10^(-4)`

C

`9.8 xx 10^(-5)`

D

`45.0 xx 10^(-5)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELASTICITY

    ERRORLESS |Exercise Critical Thinking|8 Videos

  • ELASTICITY

    ERRORLESS |Exercise Graphical Question|19 Videos

  • ELASTICITY

    ERRORLESS |Exercise Rigidity Modulus|18 Videos

  • FLUID MECHANICS

    ERRORLESS |Exercise Fluid Mechanics|19 Videos

Similar Questions

Explore conceptually related problems

The length of a rod is 20 cm and area of cross section 2cm^2 . The Young's modulus of the amterial of wire is 1.4xx10^11(N)/(m^2) . If the rod is compressed by 5 kg-wt along its length, then increase in the energy of the rod in joules will be

The area of a cross-section of steel wire is 0.1 cm^(-2) and Young's modulus of steel is 2 x 10^(11) N m^(-2) . The force required to stretch by 0.1% of its length is

If the young's modulus of the material of the rod is 2 xx 10^(11) N//m^(2) and its density is 8000 kg//m^(3) then the time taken by a sound wave to traverse 1m of the rod will be

A wire of length 1 m and its area of cross-section is 1 cm^(2) and Young's modulus of the wire is 10^(11)N//m^(2) . Two forces each equal to F are applied on its two ends in the opposite directions. If the changein length is 1 mm, then the value of F will be

A copper wire of length 4.0 mm and area of cross-section 1.2 cm^(2) is stretched with a force of 4.8 xx 10^(3) N. If Young's modulus for copper is 1.2xx10^(11) N//m^(2) , the increases in the length of the wire will be

The area of a cross section of steel wire is 0.1cm^2 and Young's modulus of steel is 2xx10^(11)Nm^-2 . The force required to strech by 0.1% of its length is

A brass rod of cross-sectional area 1cm^(2) and length 0.2 cm is compressed lengthwise by a weight of 5 kg . If Young's modulus of elasticity of brass is 1 xx 10^(11) N//m^(2) and g=10 m//sec^(2) , then increase in the energy of the rod will be

The Young's modulus of a wire of length 2m and area of cross section 1 mm^(2) is 2 xx 10^(11) N//m^(2) . The work done in increasing its length by 2mm is

A brass rod of cross-sectional area 1cm^(2) and length 0.2 m is compressed lengthwise by a weight of 5 kg. if young's modulus of elasticity of brass is 1xx10^(11)N//m^(2) and g=10m//sec^(2) then increase in the energy of the rod will be

A brass rod of cross-sectional 1 cm^(2) and length 0.2 m is compresssed lengthwire by a weight of 5kg. The young's modulus of elasticity of brass is 1 xx 10^(11) N//m^(2) and g = 10m//sec^(2) . What is the increases in the energy of the rod ?

ERRORLESS -ELASTICITY-Work done in stretching a wire
  1. If one end of a wire is fixed with a rigid support and the other end i...

    Text Solution

    |

  2. A wire is suspended by one end. At the other end a weight equivalent t...

    Text Solution

    |

  3. In the above question, the ratio of the increase in energy of the wire...

    Text Solution

    |

  4. The Young's modulus of a wire Y. If the energy per unit volume is E, t...

    Text Solution

    |

  5. The ratio of Young's modulus of the material of two wires is 2:3. If t...

    Text Solution

    |

  6. The length of a rod is 20 cm and area of cross-section 2 cm^(2). The Y...

    Text Solution

    |

  7. If a spring extends by x on loading, then then energy stored by the sp...

    Text Solution

    |

  8. On stretching a wire, the elastic energy stored pre unit volume is

    Text Solution

    |

  9. When a force is applied on a wire of uniform cross-sectional area 3xx1...

    Text Solution

    |

  10. K is the force constant of a spring. The work done in increasing its e...

    Text Solution

    |

  11. When a 4 kg mass is hung vertically on a light string that obeys Hooke...

    Text Solution

    |

  12. A wire of length L and cross sectional area A is made of a material of...

    Text Solution

    |

  13. The elastic enery stored in a wire of Young's modulus Y is

    Text Solution

    |

  14. A wire of length 50 cm and cross sectional area of 1 sq. mm is extende...

    Text Solution

    |

  15. The work per unit volume to stretch the length by 1% of a wire with cr...

    Text Solution

    |

  16. When load of 5 kg is hung on a wire than extension of 3 m takes place,...

    Text Solution

    |

  17. A stretched rubber has

    Text Solution

    |

  18. Which of the following is true for elastic potential energy density

    Text Solution

    |

  19. A wire suspended vertically from one of itsends is strached by attache...

    Text Solution

    |

  20. Wires A and B are made from the same material. A has twice the diamete...

    Text Solution

    |