Home
Class 11
PHYSICS
Consider two cylindrical rods of ident...

Consider two cylindrical rods of identical dimensions, one of rubber and the other of steel. Both the rods are fixed rigidly at one end to the roof. A mass M is attached to each of the free ends at the centre of the rods.

A

Both the rods will elongates but there shall be no perceptible change in shape

B

The steel rod will elongate and change shape but the rubber rod will only elongate

C

The steel rod will elongate without any perceptible change in shape ,but the rubber rod will elongate and the shape of the bottom edge will change to an ellipse

D

The steel rod will elongate, without any perceptible change in shape, but the rubber rod will elongate with the shape of the bottom edge tapered to a tip at the centre

Text Solution

Verified by Experts

The correct Answer is:
D
(d) Consider the diagram.
A mass M is attacted at the centre. As the mass is attached to both the rods, both rod will be elongated, but due to different elastic properites of material rubber changes shape also.
Promotional Banner

Topper's Solved these Questions

  • ELASTICITY

    DC PANDEY ENGLISH|Exercise Match the columns|4 Videos

  • ELASTICITY

    DC PANDEY ENGLISH|Exercise Medical entrances s gallery|21 Videos

  • ELASTICITY

    DC PANDEY ENGLISH|Exercise Check point 12.3|15 Videos

  • CURRENT ELECTRICITY

    DC PANDEY ENGLISH|Exercise All Questions|469 Videos

  • ELECTROSTATICS

    DC PANDEY ENGLISH|Exercise Integer|17 Videos

Similar Questions

Explore conceptually related problems

Consider two cylindrical rods of indentical dimesnions, one of rubber and the other of steel. Both the rods are fixed rigidiy at one end to the roof. A mass M is attached to each of the free ends at the centre of the rods.

Consider two cylindrical rods of indentical dimesnions, one of rubber and the other of steel. Both the rods are fixed rigidiy at one end to the roof. A mass M is attached to each of the free ends at the centre of the rods.

One end of a metal rod is kept in a furnace. In steady state, the temperature of the rod

One end of a metal rod is kept in a furnace. In steady state, the temperature of the rod

A thin rod of negligible mass and area of cross section S is suspended vertically from one end. Length of the rod is L_(0) at T^(@)C . A mass m is attached to the lower end of the rod so that when temperature of the rod is reduced to 0^(@)C its length remains L_(0) Y is the Young’s modulus of the rod and alpha is coefficient of linear expansion of rod. Value of m is :

Two equal rods joined at one end are kept on a smooth surface as shown and released Trajectory of centre of mass of both rods is :-

Two particles of mass m each are attached to a light rod of length d, one at its centre and the other at a free end, The rod is fixed at the other end and is rotated in a plane at an angular speed omega . Calculate the angular momentum of the particle at the end with respect to the particle at the centre

A light rigid rod of length l is hinged at one end and it is free to rotate in a vertical plane. A particle of mass m is attached to another end of the rod. The particle is released from rest at its highest point. Select the correct statement out of the following

A uniform rod ofmass M and length L is hanging from its one end free to rotate in a veritcal plane.A small ball of equal mass is attached of the lowe end as shown. Time period of small oscillations of the rod is

Two rods A and B of same area of cross-section are joined together end to end The free end of the rod A is kept in melting ice at 300 K and free end of B rod at 400 K. The rods are of the same length. The conductivity of A is 3 times that of B. Calculate the temperature of the junction of the rods.

DC PANDEY ENGLISH-ELASTICITY-Chapter Exercise
  1. The strain stress curves of three wires of different materials are sho...

    Text Solution

    |

  2. A string 1m long is drawn by a 300 Hz vibrator attached to its end. Th...

    Text Solution

    |

  3. The potential energy U between two molecules as a function of the dist...

    Text Solution

    |

  4. The diagram shows a force-extension graph for a rubber band. Conside...

    Text Solution

    |

  5. Consider two cylindrical rods of identical dimensions, one of rubbe...

    Text Solution

    |

  6. The adjacent graph shows the extension Deltal of a wire of length 1m...

    Text Solution

    |

  7. A brass of length 2 m and cross-sectional area 2.0 cm^(2) is attached ...

    Text Solution

    |

  8. One end of uniform wire of length L and of weight W is attached rigidl...

    Text Solution

    |

  9. The wire of a Young's modules appartus is elongated by 2 mm when a bri...

    Text Solution

    |

  10. A rigid bar of mass M is supported symmetrically by three wires each o...

    Text Solution

    |

  11. A wire of leng:h L has a linear mass density mu and area of cross-sect...

    Text Solution

    |

  12. The density of a metal at normal pressure is rho. Its density when it ...

    Text Solution

    |

  13. One end of a long metallic wire of length L is tied to the ceiling. Th...

    Text Solution

    |

  14. The length of a rubber cord is l(1) m when the tension is 4 N and l...

    Text Solution

    |

  15. A uniform elastic plank moves due to a constant force F(0) applied at...

    Text Solution

    |

  16. A uniform pressure p is exerted on all sides of a solid cube of a mate...

    Text Solution

    |

  17. A block of weight W produces an extension of 9cm when it is hung by an...

    Text Solution

    |

  18. A rectangular frame is to be suspended symmetrically by two strings of...

    Text Solution

    |

  19. Two wires of the same material (Young's modulus=Y) and same length L b...

    Text Solution

    |

  20. A mild steel wire of length 2L and cross-sectional area A is stretched...

    Text Solution

    |