Home
Class 12
PHYSICS
Four rods with different radii r and len...

Four rods with different radii `r` and length `l` are used to connect two reservoirs of heat at different temperatures. Which one will conduct most heat ?

A

`r= 2 cm, l=0.5 m`

B

`r=2 cm, l=2 m`

C

`r=0.5 cm, l=0.5 m`,

D

`r=1 cm, l=1 m`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • HEAT - 1

    MOTION|Exercise EXERCISE -2 (Level - I) Objective Problems | JEE Main|24 Videos

  • HEAT - 1

    MOTION|Exercise EXERCISE -2 (Level - II) Multiple Correct | JEE Advanced|16 Videos

  • HEAT - 1

    MOTION|Exercise EXERCISE -4 (Level - II) Previous Year | JEE Advanced|22 Videos

  • GRAVITATION

    MOTION|Exercise Exercise - 4 Section - B Previous Years Problems|15 Videos

  • HEAT TRANSFER & THERMAL EXPANSION

    MOTION|Exercise Exercise - 3 Section-B|19 Videos

Similar Questions

Explore conceptually related problems

Four rods of same material with different radii r and length l are used to connect two reservoirs of heat at different temperatures. Which one will conduct maximum heat?

Which of the following circular rods (given radius r and length l ) each made of the same material and whose ends are maintained at the same temperature will conduct most heat?

Which of the following circular rods. (given radius r and length l ) each made of the same material as whose ends are maintained at the same temperature will conduct most heat

Two ends of rods of length L and radius R of the same material of kept at the same temperature. Which of the following rods conducts the maximum heat?

Is temperature a conserved quantity in transfer of heat between two bodies at different temperatures.

What is the difference between heat and temperature ?

MOTION-HEAT - 1-EXERCISE - 1 Objective Problems | JEE Main
  1. A continuous flow water heater (geyser) has an electrical power rating...

    Text Solution

    |

  2. Ice at 0^@C is added to 200 g of water initially at 70^@C in a vacuum ...

    Text Solution

    |

  3. Four rods with different radii r and length l are used to connect two ...

    Text Solution

    |

  4. Two rods A and B of different materials but same cross section are joi...

    Text Solution

    |

  5. The ends of a metal bar of constant cross-sectional area are maintaine...

    Text Solution

    |

  6. The wall with a cavity consists of two layers of brick separated by a ...

    Text Solution

    |

  7. A rod of length L and uniform cross-sectional area has varying thermal...

    Text Solution

    |

  8. A wall has two layers A and B, each made of different material. Both t...

    Text Solution

    |

  9. Two metal cubes with 3 cm-edges of copper and aluminium are arranged a...

    Text Solution

    |

  10. Two identical square rods of metal are welded end to end as shown in f...

    Text Solution

    |

  11. A wall consists of alternating blocks withlength 'd' and coefficient o...

    Text Solution

    |

  12. A cylinder of radius R made of a material of thermal conductivity K1 i...

    Text Solution

    |

  13. From a black body, radiation is not :

    Text Solution

    |

  14. In accordance with Kirchhoff’s law. Which of the following is incorrec...

    Text Solution

    |

  15. The energy radiated by a body does not depends on

    Text Solution

    |

  16. A polished metallic piece and a black painted wooden piece are kept i...

    Text Solution

    |

  17. Nature of thermal radiations is similar to the nature of -

    Text Solution

    |

  18. Heat radiation exhibit the phenomenon of polarization which means that...

    Text Solution

    |

  19. Following is not a property of radiation –

    Text Solution

    |

  20. Transfer of heat in friction is by –

    Text Solution

    |