Home
Class 12
PHYSICS
A metal wire of length jl and area of cr...

A metal wire of length jl and area of cross - section A is fixed between rigid supports negligible tension . If this is cooled. The tension in the wire will be

A

proportional to l

B

inversely proportional to l

C

independent of l

D

independent of A

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • EXPERIMENTAL PHYSICS

    D MUKHERJEE|Exercise chose the correct|4 Videos

  • IIT QUESTIONS 1

    D MUKHERJEE|Exercise Matrix-Matching Type|1 Videos

Similar Questions

Explore conceptually related problems

A metal wire of length L_1 and area of cross section A is ttached to a rigid support. Another metal wire of length L_2 and of the same cross sectional area is attached to the free end of the first wire. A body of mass M is then suspended from the free end of the second wire, if Y_1 and Y_2 are the Young's moduli of the wires respectively the effective force constant of the system of two wires is

A metal wire of length L_1 and area of cross-section A is attached to a rigid support. Another metal wire of length L_2 and of the same cross-sectional area is attached to free end of the first wire. A body of mass M is then suspended from the free end of the second wire. If Y_1 and Y_2 are the Young's moduli of the wires respectively, the effective force constant of the system of two wire is

A metal wire of length L, area of cross-section A and Young's modulus Y behaves as a spring of spring constant k.

Two metal rods of the same length and area of cross-section are fixed end to end between rigid supports. The materials of the rods have Young module Y_(1) and Y_(2) , and coefficient of linear expansion alpha_(1) and alpha_(2) . The junction between the rod does not shift and the rods are cooled

In a stretched wire under tension and fixed at both ends, the area of cross section of the wire is halved and the tension is doubled. The frequency of the wire will be

A wire of length L and area of cross-section A, is stretched by a load. The elongation produced in the wire is I. If Y is the Young's modulus of the material of the wire, then the torce corstant of the wire is

Two metal wires -1 & 2 of lengths L_(1) and L_(2) and of same materical are fixed between two different sets of rigid supports at negligible tension. The cross-sectional area of wire-1 is greater than cross sectional area of wire-2 by Delta A . Wire-1 is cooled by t^(@)C . Wire-2 of cross-sectional area A is cooled Delta t^(@)C greater than wire-1. For same tension in both the wires, Delta t will be

On suspending a weight Mg, the length l of elastic wire and area of cross section A , its length becomes double the initial length. The instantaneous stress action on the wire is

D MUKHERJEE-HEAT AND THERMODYNAMICS-All Questions
  1. Two holes of unequal diameters d(1) and d(2)(d(1)gt d(2)) are cut in m...

    Text Solution

    |

  2. In the previous question, the distance between the hole will

    Text Solution

    |

  3. A metal wire of length jl and area of cross - section A is fixed betwe...

    Text Solution

    |

  4. Two metal rods of the same length and area of cross-section are fixed ...

    Text Solution

    |

  5. Three rods of equal of length are joined to from an equilateral triang...

    Text Solution

    |

  6. when the temperature of a body increses from t to t +Deltat,its moment...

    Text Solution

    |

  7. A horizontal tube, open at both ends, contains a column of liquid. The...

    Text Solution

    |

  8. In a vertical U-tube containing a luquid, the two arms are maintained ...

    Text Solution

    |

  9. A solid whose volume does not change with temperature floats in a liqu...

    Text Solution

    |

  10. A solid with coefficient of linear expansion aplha just floats in a li...

    Text Solution

    |

  11. A gas at 300 K has pressure 4 xx 10^(-10) N//m^(2). IF k = 1.38 xx 10^...

    Text Solution

    |

  12. The root mean square (r.m.s) speed of oxygen molecules (O2) at a cer...

    Text Solution

    |

  13. The average translational kinetic energy of O(2) (molar mass 32) molec...

    Text Solution

    |

  14. A gas has volume V and pressure p. The total translational kinetic ene...

    Text Solution

    |

  15. A closed vessel is maintained at a constant temperture. It is first ev...

    Text Solution

    |

  16. when an air bubble rises from the bottom to the surface of a lake, its...

    Text Solution

    |

  17. Two containers of equal volume contain the same gas at pressure P(1) a...

    Text Solution

    |

  18. Two idential container joined by a small pipe initially contain the sa...

    Text Solution

    |

  19. In the previous question let V(0) be the volume of each container. All...

    Text Solution

    |

  20. A horizontal cylinder has two sections of unequal cross - sections, in...

    Text Solution

    |