Home
Class 12
PHYSICS
Two exactly similar wires of steel and c...

Two exactly similar wires of steel and copper are stretched by equal force. If the total elongation is 2 cm, then how much is the elongation in steel and copper wire respectively? Given, `Y_("steel")=20xx10^(11)"dyne/cm"^(2),Y_("copper")=12xx10^(11)"Dyne/cm"^(2)`

A

1.25 cm 0.75 cm

B

0.75 cm 1.25 cm

C

1.15 cm 0.85cm

D

0.85 cm 1.15 cm

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • MECHANICAL PROPERTIES OF SOLIDS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment(Section-B)|26 Videos

  • MECHANICAL PROPERTIES OF SOLIDS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment(Section-C)|29 Videos

  • MECHANICAL PROPERTIES OF SOLIDS

    AAKASH INSTITUTE ENGLISH|Exercise EXERCISE|20 Videos

  • MECHANICAL PROPERTIES OF FLUIDS

    AAKASH INSTITUTE ENGLISH|Exercise SECTION - J|9 Videos

  • Mock test 03

    AAKASH INSTITUTE ENGLISH|Exercise EXAMPLE|44 Videos

Similar Questions

Explore conceptually related problems

A rigid bar of mass 15 kg is supported symmetrically by three wires, each of length 2 m. The wires at the endpoints are made of copper and the middle one is made of steel. If the tension in each wire is the same, then the diameter of copper wire to the diameter of steel wire is ["Given, "Y_("copper")=1.1xx10^(11)"N m"^(-1) and Y_("steel")=1.9xx10^(11)"N m"^(-2)]

A light rod of length 2 m is suspended from ceiling horizontally by means of two vertical wires of equal length tied to its ends. One of the wires is made of steel and is of cross-section 0.1 cm sq. and the other of brass of cross-section 0.2 cm sq. Along the rod at what distance a weight may be hung to produce equal stresses in the wires? (Y_("Steel") = 2 xx 10^(11) Nm^(-2), Y_("Bass") = 1 xx 10^(11) Nm^(-2))

A copper wire of length 2.4 m and a steel wire of length 1.6 m, both of diameter 3 mm, are connected end to end. When stretched by a load, the net elongation found to be 0.7 mm. The load appled is (Y_("Copper") = 1.2 xx 10^(11) N m^(-2) , Y_("steel") = 2 xx 10^(11) N m^(-2))

A brass of length 2 m and cross-sectional area 2.0 cm^(2) is attached end to end to a steel rod of length and cross-sectional area 1.0 cm^(2) . The compound rod is subjected to equal and oppsite pulls of magnitude 5 xx 10^(4) N at its ends. If the elongations of the two rods are equal, the length of the steel rod (L) is { Y_(Brass) = 1.0 xx 10^(11) N//m^(2) and Y_(steel) = 2.0 xx 10^(11) N//m^(2)

In an experiment, brass and steel wires of length 1 m each with areas of cross section 1mm^(2) are used. The wires are connected in series and one end of the combined wire is connected to a rigid support and other end is subjected to elongation. The stress required to produce a net elongation of 0.2 mm is, [Given, the Young’s Modulus for steel and brass are, respectively, 120 xx 10^(9) N//m^(2) and 60 xx 10^(9) N//m^(2)

In an experiment, brass and steel wires of length 1 m each with areas of cross section 1mm^(2) are used. The wires are connected in series and one end of the combined wire is connected to a rigid support and other end is subjected to elongation. The stress required to produce a net elongation of 0.2 mm is, [Given, the Young’s Modulus for steel and brass are, respectively, 120 xx 10^(9) N//m^(2) and 60 xx 10^(9) N//m^(2)

Two wires of equal cross section but one made of steel and the other of copper, are joined end to end. When the combination is kept under tension, the elongations in the two wires are found to be equal. Find the ratio of the lengths of the two wires. Young modulus of steel =2.0xx10^11Nm^-2 and that of copper =1.1xx10^11Nm^-2

A steel wire and a copper wire of equal length and equal cross sectional area are joined end to end and the combination is subjected to a tension. Find the ratio of a. The stresses developed in the two wire and b. the strains developed. Y of steel =2xx10^11Nm^-2 . Y of copper =1.3xx10^11 Nm^-2 .

Two wires one of copper and other of iron having same cross-section area and lengths 2 m and 1.5 m respectively are fastened end and stretched by a load 10 N. If copper wire is stretched by 2mm then find the total extension of combined wire, Y_(Cu)=1xx10^(11)N//m^(2) and Y_(Fe)=3xx10^(11)N//m^(2) .

A Copper wire of length 2.2m and a steel wire of length 1.6m, both of diameter 3.0mm are connected end to end. When stretched by a load, the net elongation is found to be 0.70 mm. Obtain the load applied . Young's modulus of copper is 1.1 xx 10^(11)Nm^(-2) and Young's modulus of steel is 2.0 xx 10^(11)Nm^(-2) .

AAKASH INSTITUTE ENGLISH-MECHANICAL PROPERTIES OF SOLIDS-Assignment(Section-A)
  1. A spherical ball contracts in volume by 0.02% when subjected to a norm...

    Text Solution

    |

  2. What is the percentage increase in length of a wire of diameter 2.5 mm...

    Text Solution

    |

  3. Two exactly similar wires of steel and copper are stretched by equal f...

    Text Solution

    |

  4. Which of the following graphs represents stress-strain variation for...

    Text Solution

    |

  5. A steel rod has a radius 10 mm and a length of 1.0 m. A force stretch...

    Text Solution

    |

  6. The elastic limit of steel is 8xx10^8Nm^-2 and its Young modulus 2xx10...

    Text Solution

    |

  7. As shown in figure, by combining together copper and steel wires of sa...

    Text Solution

    |

  8. Select the correct alternative(s).

    Text Solution

    |

  9. A metallic rod of length l and cross-sectional area A is made of a mat...

    Text Solution

    |

  10. The Poisson's ratio of a material is 0.5. If a force is applied to a w...

    Text Solution

    |

  11. The load versus elongation graph for four wires of the same material i...

    Text Solution

    |

  12. A uniform heavy rod of weight W, cross sectional area a and length L i...

    Text Solution

    |

  13. If in case A, elongation in wire of length L is l then for same wire e...

    Text Solution

    |

  14. In the given figure, if the dimensions of the two wires are same but m...

    Text Solution

    |

  15. If the Bulk modulus of lead is 8.0xx10^(9)N//m^(2) and the initial den...

    Text Solution

    |

  16. Two wires A and B of same material have radii in the ratio 2:1 and le...

    Text Solution

    |

  17. For a given material, the Young's modulus is 2.4 times that of the m...

    Text Solution

    |

  18. When the temperature of a gas is 20^(@)C and pressure is changed from ...

    Text Solution

    |

  19. The stress versus strain graphs for wires of two material A and B are ...

    Text Solution

    |

  20. Hooke's law is applicable for

    Text Solution

    |