Home
Class 11
PHYSICS
The ratio of radii of two cylindrical ro...

The ratio of radii of two cylindrical rods of same material is 2 : 1 and ratio of their lengths is 2 : 3. Their ends are maintained at same temperature difference. If rate of flow of heat in the longer rod is 2 Cal `s^(-1)`, then that in the shorter rod will be

A

4 Cal `s^(-1)`

B

12 Cal `s^(-1)`

C

8 Cal `s^(-1)`

D

1 Cal `s^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • THERMAL PROPERTIES OF MATTER

    AAKASH SERIES|Exercise EXERCISE-3|87 Videos

  • THERMAL PROPERTIES OF MATTER

    AAKASH SERIES|Exercise THERMOMETRY (LECTURE SHEET) Straight Objective Type Questions|15 Videos

  • THERMAL PROPERTIES OF MATTER

    AAKASH SERIES|Exercise EXERCISE-IB|68 Videos

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH SERIES|Exercise PRACTICE EXERCISE|99 Videos

  • THERMODYNAMICS

    AAKASH SERIES|Exercise EXERCISE - 3|33 Videos

Similar Questions

Explore conceptually related problems

Heat is flowing through two cylindrical rods of the same material. The diameters of the rods are in the ratio 1 : 2 and their lengths are in the ratio 2 : 1. If the temperature difference between their ends is the same, then the ratio of the amounts of heat conducted through them per unit time will be:

Two cylindrical rods of the same material have the same temperature difference between their ends. The ratio of the rates of flow of heat through them is 1 : 8. The radii of the rods are in the ratio 1 : 2. What is the ratio of their lengths ?

Four rods of same material but with differcnt radii and lengths are uscd to connect two reservoirs of heat with the same temperaturedifference. Which one will conduct more heat

The ratio of the lengths of two rods is 4 : 3. The ratio of their coefficients of cubical expansion is 2 : 3. Then the ratio of their linear expansions when they are heated through same temperature difference is

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?

AAKASH SERIES-THERMAL PROPERTIES OF MATTER-EXERCISE-2
  1. Three metal rods of same lengths and same area of cross-section having...

    Text Solution

    |

  2. Two rods of same length having conductivities 60Wm^(-1)K^(-1),40Wm^(-1...

    Text Solution

    |

  3. The ratio of radii of two cylindrical rods of same material is 2 : 1 a...

    Text Solution

    |

  4. One end of a cylindrical rod is kept in steam chamber and the other en...

    Text Solution

    |

  5. A 3 cm cube of iron has one face at 100^(@)C and the other in a block ...

    Text Solution

    |

  6. Two vessels made of different materials are identical in all respects....

    Text Solution

    |

  7. Equal temperature difference exists between the ends of two metallic r...

    Text Solution

    |

  8. Two rods A and B of same length and radius are joined together. The th...

    Text Solution

    |

  9. A pond has an ice layer of thickness 3 cm. If K of ice is 0.005 CGS un...

    Text Solution

    |

  10. The ratio of intensities of radiation at distances of R and 3R from a ...

    Text Solution

    |

  11. If reflecting and transmitting powers of a body are 0.2 and 0.3 units,...

    Text Solution

    |

  12. If the temperature of a Black body increases by 50% then amount of rad...

    Text Solution

    |

  13. An incandescent light bulb has a tungsten filament that is heated to a...

    Text Solution

    |

  14. The rate of emission of radiation of a black body at temperature 27^(@...

    Text Solution

    |

  15. The radiation emitted by a star A is 10,000 times that of the sun. If ...

    Text Solution

    |

  16. The rectangular surface of area 8cmxx4cm of a black body at a temperat...

    Text Solution

    |

  17. Two objects A and B have same shape and area. The Emissivity of A is 0...

    Text Solution

    |

  18. A Black metal foil receives radiation of power P from a hot sphere at ...

    Text Solution

    |

  19. If wavelengths of maximum intensity of radiations emitted by the sun a...

    Text Solution

    |

  20. The wavelength of maximum energy released during an atomic explosion w...

    Text Solution

    |