Home
Class 12
PHYSICS
The area of cross-section of a railway t...

The area of cross-section of a railway track is `0.01 m^2` . The temperature variation is `10^@C`. Coefficient of linear expansion of material of track is `10^(-5)//^@C` . The energy stored per meter in the track is ______ J/m.
(Young's modulus of material of track is `10^(11) Nm^(-2)` )

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • JEE MAINS 2021

    JEE MAINS PREVIOUS YEAR|Exercise PHYSICS (SECTION - A) |40 Videos

  • JEE MAINS 2021

    JEE MAINS PREVIOUS YEAR|Exercise PHYSICS (SECTION - B) |20 Videos

  • JEE MAINS 2021

    JEE MAINS PREVIOUS YEAR|Exercise Physics (Section B )|10 Videos

  • JEE MAINS 2020

    JEE MAINS PREVIOUS YEAR|Exercise PHYSICS|246 Videos

  • JEE MAINS 2022

    JEE MAINS PREVIOUS YEAR|Exercise PHYSICS (SECTION -B)|10 Videos

Similar Questions

Explore conceptually related problems

(a) A wire 4 m long and 0.3 mm, calculate the potential energy stored in the wire. Young's modulus for the material of wire is 2.0xx10^(11) N//m^(2) .

A steel rod of length 5 m is fixed between two support. The coefficient of linear expansion of steel is 12.5 xx 10-6//^(@)C . Calculate the stress (in 10^(8) N//m2 ) in the rod for an increase in temperature of 40^(@)C . Young's modulus for steel is 2 xx 10^(11) Nm^(-2)

A uniform rod of cross-section 4 mm^(2) is heated from 0^(@)C " to "10^(@)C. The coefficient of linear expansion of the rod, prop=12xx10^(-6)//^(@)C and Young's modulus =10^(11)N//m^(2). The strain produced in the rod is

If a uniform brass wire of length 5 m and radius 10^(-3) m is extended by 10^(-3) m, then the energy stored in the wire will be (Young's modulus for brass =10xx10^(10)N//m^(2) )

A rod is fixed between two points at 20^(@)C . The coefficient of linear expansion of material of rod is 1.1 xx 10^(-5)//.^(C and Young's modulus is 1.2 xx 10^(11) N//m . Find the stress develop in the rod if temperature of rod becomes 10^(@)C

A stell wire of cross-sectional area 0.5mm^2 is held between teo fixed supports. If the wire is just taut at 20^C , determine the tension when the temperature falls to 0^C . Coefficient of linear expansion of steel is 1.2 xx 10^(-5) 0^C(-1) and its Young's modulus is 2.0 xx 10^11 N m^(-2).

The area of cross-section of a wire is 10^(-5) m^(2) when its length is increased by 0.1% a tension of 1000N is produced. The Young's modulus of the wire will be (in Nm^(-2) )

If a wire of length 4 m and cross-sectional area of 2 m^(2) is stretched by a force of 3 kN, then determine the change in length due to this force . Given, Young's modulus of material of wire is 110xx10^(9) Nm^(-2)

JEE MAINS PREVIOUS YEAR-JEE MAINS 2021-PHYSICS (SECTION-B)
  1. The centre of a wheel rolling on a plane surface moves with a speed v0...

    Text Solution

    |

  2. A ray of light passing through a prism (mu = sqrt3)suffers minimum dev...

    Text Solution

    |

  3. The area of cross-section of a railway track is 0.01 m^2 . The temper...

    Text Solution

    |

  4. Three students S1, S2 and S3 perform an experiment for determining th...

    Text Solution

    |

  5. In 5 minutes, a body cools from 75^@C to 65^@C at room temperature o...

    Text Solution

    |

  6. A system consists of two types of gas molecules A and B having same nu...

    Text Solution

    |

  7. A light beam of wavelength 500 nm is incident on a metal having work f...

    Text Solution

    |

  8. A message signal of frequency 20 kHz and peak voltage of 20 volt is us...

    Text Solution

    |

  9. A 16 Omega wire is bend to form a square loop. A 9 V supply having int...

    Text Solution

    |

  10. Two circuits are shown in the figure (a) & (b). At a frequency of rad...

    Text Solution

    |

  11. From the given data, the amount of energy required to break the nucleu...

    Text Solution

    |

  12. A force of F = (5y + 20) hat (j) N N acts on a particle. The workdone ...

    Text Solution

    |

  13. A solid disc of radius 20 cm and mass 10 kg is rotating with an angula...

    Text Solution

    |

  14. In a semiconductor, the number density of intrinsic charge carriers at...

    Text Solution

    |

  15. The nuclear activity of a radioactive element becomes (1/8)^(th) of ...

    Text Solution

    |

  16. Consider an electrical circuit containing a two way switch 'S'. Initi...

    Text Solution

    |

  17. Suppose two planets (spherical in shape) of radii R and 2R, but mass ...

    Text Solution

    |

  18. In Bohr's atomic model, the electron is assumed to revolve in a circul...

    Text Solution

    |

  19. A radioactive sample has an average life of 30 ms and is decaying. A c...

    Text Solution

    |

  20. A particle of mass 9.1 xx 10^(-31) kg travels in a medium with a speed...

    Text Solution

    |