Home
Class 12
PHYSICS
A body of mass M is attached to the lowe...

A body of mass `M` is attached to the lower end of a metal wire, whose upper end is fixed . The elongation of the wire is `l`.

A

Loss in gravitational potential energy of M is Mgl.

B

The elastic potential energy stored in the wire is Mgl.

C

The elastic potential energy stored in the wire is `½ Mgl`.

D

Heat produced is `½ Mgl`.

Text Solution

Verified by Experts

The correct Answer is:
A, C, D
Promotional Banner

Topper's Solved these Questions

  • PROPERTIES OF MATTER,FLUIDS

    D MUKHERJEE|Exercise Type 2|35 Videos

  • PRACTICE WORKSHEET 3

    D MUKHERJEE|Exercise Matrix-Matching Type|1 Videos

  • SOUND WAVES

    D MUKHERJEE|Exercise All Questions|48 Videos

Similar Questions

Explore conceptually related problems

A body of mass M is attached to lower end of a metal wire whose upper and is fixed. The elongation is l. The ratio of loss of gravitational potential energy to the energy stored in the wire is

A body of mass m is attached to the lower end of a spring whose upper end is fixed. The spring has negligible mass. When the mass m is slightly pulled down and released, it oscillates with a time period of 3s. When the mass m is increased by 1 kg , the time period of oscillations becomes 5s. The value of m in kg is

A ball of mass m is attached to the lower end of a vertical string whose upper end is fixed. An identcial ball 'B' moving with a velocity v_(0) = 6 m//s at an angle theta = 45^(@) from vertical collides elastically with the ball 'A' as shown. The verocity of the ball 'B' just after collision is

A metal wire of length L is suspended vertically from a rigid support. When a bob of mass M is attached to the lower end of wire, the elongation of the wire is l:

A block of mass M is attached to the lower end of a vertical rope of mass m. An upward force P acts on the upper end of the rope. The system is free to move. The force exerted by the rope on the block is (PM)/(M+m)

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

By how much will a 3.0 m long copper wire elongate if a weight of 10 kg is suspended from the lower end with the upper end keeping fixed? The diameter of the wire is 0.4 mm. Given: Y for copper =10^(11)Nm^(-2) and g=9.8ms^(-2)

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 negligible mass, length 1 m and cross-sectional area 10^(-6) m^(2) is kept on a smooth horizontal table with one end fixed on the table. A ball of mass 2kg is attached to the other end of the wire. When the wire and the ball are rotated with angular velocity of 20 rad/s, it is found that the wire is elongated by 10^(-3)m . If the Young's modulus of the metal is n xx 10^(11) N//m^(2) , then the value of n is

D MUKHERJEE-PROPERTIES OF MATTER,FLUIDS-Type 2
  1. A solid sphere of uniform density and radius 4 units is located with i...

    Text Solution

    |

  2. The magnitude of the gravitational field at distance r(1) and r(2) fro...

    Text Solution

    |

  3. An elastic metal rod will change its length when it

    Text Solution

    |

  4. The wires A and B shown in Fig. are made of the same material and have...

    Text Solution

    |

  5. A body of mass M is attached to the lower end of a metal wire, whose u...

    Text Solution

    |

  6. A metal wire of length L, area of cross-section A and young's modulus ...

    Text Solution

    |

  7. n drops of a liquid, each with surface energy E. joining to form a sin...

    Text Solution

    |

  8. When an air bubble rise from the bottom of a deep lake to a point just...

    Text Solution

    |

  9. When a capillary tube is dipped in a liquid, the liquid rises to a hei...

    Text Solution

    |

  10. A vertical glass capillary tube, open at both ends, contains some wate...

    Text Solution

    |

  11. A spring balance reads W(1) when a ball is suspended from it. A weighi...

    Text Solution

    |

  12. In the previous question,

    Text Solution

    |

  13. A massless conical flask filled with a liquid is kepth on t a table in...

    Text Solution

    |

  14. The vessel shown in the figure has a two sections of areas of cross-se...

    Text Solution

    |

  15. A tank, which is open at the top, contains a liquid up to a height H. ...

    Text Solution

    |

  16. In the figure, an ideal liquid flows through the tube, which is of uni...

    Text Solution

    |

  17. A liquid flows through a horizontal tube. The velocities of the liquid...

    Text Solution

    |

  18. A liquid of density rho comes out with a velocity v from a horizontal ...

    Text Solution

    |

  19. A rectangular block of mass m and area of cross-section A floats in a ...

    Text Solution

    |

  20. A vertical U-tube contains a liquid. The total length of the liquid co...

    Text Solution

    |