Home
Class 11
PHYSICS
Two wires of same length and thickness a...

Two wires of same length and thickness are joined end to end. Their Young's moduli are `15 xx 10^10 pa` and `20 xx 10^10pa` . If the combination is stretched by a certain load, the elongations of these wires will be in the ratio

A

`3:4`

B

`4:3`

C

`1:1`

D

`1:2`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MECHANICAL PROPERTIES OF SOLIDS

    AAKASH SERIES|Exercise EXERCISE - 2 (RIGIDITY MODULUS AND BULK MODULUS )|16 Videos
  • MECHANICAL PROPERTIES OF SOLIDS

    AAKASH SERIES|Exercise EXERCISE - 2 (STRAIN ENERGY )|16 Videos
  • MECHANICAL PROPERTIES OF SOLIDS

    AAKASH SERIES|Exercise EXERCISE IB (ASSERTION (A) AND REASON ( R) TYPE QUESTIONS (BULK MODULUS; RIGIDITY MODULUS; STRAIN ENERGY; POISSION.S RATIO))|12 Videos
  • MECHANICAL PROPERTIES OF FLUIDS

    AAKASH SERIES|Exercise EXERCISE-3|43 Videos
  • MOTION IN A PLANE

    AAKASH SERIES|Exercise Practice Exercise|84 Videos

Similar Questions

Explore conceptually related problems

Two wires of same length and radius are joined end to end and loaded. The Young.s modulii of the materials of the two wires are Y_(1) and Y_(2) . If the combination behaves as a single wire them its Young.s modulus is

Two wires of same length and radius are joined in parallel and loaded. The Young.s modulii of the material of the wires are Y_(1) & Y_(2) . If the combination is taken as a single wire them its Young.s modulus is

An aluminium wire and a steel wire of the same length and cross-section are joined end to end. The composite wire is hund from a rigid support and a load is suspended from the free end. If the increase in the length of the composite wire is 2.7mm, find the increase in the length of each wire. (Y_(Al)=0.7xx10^(11)Nm^(-2), Y_("steel")=2xx10^(11)Nm^(-2))

An aluminium wire and a steel wire of the same length and cross-section are joined end- to-end. The composite wire is hung from a rigid support and a load is suspen-ded from the free end. If the increase in lengthe of the composite wire is 1.35 mm, find the ratio the (i) stress in the two wires amd (ii) strain in the two wires. (Y_(Al)=0.7xx10^(!1)Nm^(-2),Y_("steel")=2=10^(11)Nm^(-2))

AAKASH SERIES-MECHANICAL PROPERTIES OF SOLIDS-EXERCISE - 2 (YOUNG.S MODULUS)
  1. A wire whose cross-sectional area is 4 mm^2 is stretched by 0.1 mm by...

    Text Solution

    |

  2. When a tension 'F' is applied, the elongation produced in uniform wire...

    Text Solution

    |

  3. Two wires A and B have Young's modulii in the ratio 1:2 and ratio of l...

    Text Solution

    |

  4. A wire stretched by 0.01 m when it is stretched by a certain force. An...

    Text Solution

    |

  5. A steel wire is 1m long and 1mm^2 in area of cross-section. If it tak...

    Text Solution

    |

  6. Two bars A and B of circular cross section and of same volume made of ...

    Text Solution

    |

  7. An iron wire of length 4m and diameter 2mm is loaded with a weight of ...

    Text Solution

    |

  8. Two wires of same material have masses in the ratio 3:4 the ratio of t...

    Text Solution

    |

  9. Two exactly similar wires of steel (Y=20 xx 10^11 dy//cm^2) and copper...

    Text Solution

    |

  10. Two wires of same length and thickness are joined end to end. Their Yo...

    Text Solution

    |

  11. A steel wire of length 20 cm is stretched to increase its length by 0....

    Text Solution

    |

  12. A tungsten wire, 0.5 mm in diameter, is just stretched between two fix...

    Text Solution

    |

  13. Two wires are arranged as shown in the figure. The elongations in uppe...

    Text Solution

    |

  14. A uniform steel rod of length 1m and area of cross section 20 cm^2 is...

    Text Solution

    |

  15. The Young's modulus of steel is twice that of brass. Two wires of the ...

    Text Solution

    |

  16. A steet wire of length 4.7 m and cross - sectional area 3.0xx10^(-5)m^...

    Text Solution

    |

  17. If the Poissions ratio of a substance is 0.25 then the ratio of its Yo...

    Text Solution

    |

  18. The poisson ratio for the material of a wire is 0.4. When a force is a...

    Text Solution

    |

  19. Four identical hollow cylindrical columns of mild steel support a big ...

    Text Solution

    |

  20. Two block of masses 1 kg 2 are connected by a metal wire going over a ...

    Text Solution

    |