Home
Class 11
PHYSICS
two metallic plates of thickness d1 and ...

two metallic plates of thickness `d_1` and `d_2` thermal conductivities `K_1` and `K_2` are placed in contact. prove that their equivalent thermal conductivity is given by `K = (d_1+d_2)//((d_1/K_1) + (d_2/K_2))`

Promotional Banner

Topper's Solved these Questions

  • Transfer of heat

    MODERN PUBLICATION|Exercise Exercise|27 Videos

  • Thermal expansion and Calorimetry

    MODERN PUBLICATION|Exercise Exercise|24 Videos

  • Unit Test - Gravitation

    MODERN PUBLICATION|Exercise Example|229 Videos
MODERN PUBLICATION-Transfer of heat-Exercise
  1. define coefficient of thermal conductivity. explain its formula. give ...

    Text Solution

    |

  2. A slab consists fo two parallel layer of different materials of same t...

    Text Solution

    |

  3. two metallic plates of thickness d1 and d2 thermal conductivities K1 a...

    Text Solution

    |

  4. distinguish between conduction and convection. give one application in...

    Text Solution

    |

  5. State Newton's law of cooling.

    Text Solution

    |

  6. two copper vessels are identical in every respect except that outer su...

    Text Solution

    |

  7. what are the different win cycles formed in the atmosphere? which phen...

    Text Solution

    |

  8. explain the formation of land and sea breeze.

    Text Solution

    |

  9. what is radiation? list out the main properties of heat radiation

    Text Solution

    |

  10. Define a black body and explain how it can be realised in practice.

    Text Solution

    |

  11. Explain the significance of Kirchhoff's law.

    Text Solution

    |

  12. Explain the significance of Kirchhoff's law.

    Text Solution

    |

  13. what is meant by the emissive power of a surface at a given wavelength...

    Text Solution

    |

  14. discuss the general characteristics of a black body spectrum

    Text Solution

    |

  15. discuss the general characteristics of a black body spectrum

    Text Solution

    |

  16. Write Stefan's law.

    Text Solution

    |

  17. What is Stefan's law? what are the SI and CGS units

    Text Solution

    |

  18. discuss the general characteristics of a black body spectrum

    Text Solution

    |

  19. draw a labelled graph of experimentally observed spectrum of a black b...

    Text Solution

    |

  20. State Newton's law of cooling.

    Text Solution

    |