Home
Class 11
PHYSICS
Two rods of same length and material tra...

Two rods of same length and material transfer a given amount of heat in 12s, when they are joined end to end. But they are joined length wise they will transfer same heat in same condition in

A

24 min

B

3 min

C

12 min

D

6 min

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • TRANSMISSION OF HEAT

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (LEVEL-II (LECTURE SHEET (ADVANCED)) Straight Objective Type Questions|6 Videos
  • TRANSMISSION OF HEAT

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (LEVEL-II (LECTURE SHEET (ADVANCED)) More than One correct answer Type Questions|4 Videos
  • TRANSMISSION OF HEAT

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE-II) Thermal Conduction (LEVEL-II) Integer Type Questions|2 Videos
  • TRANSMISSION OF HEAT

    AAKASH SERIES|Exercise QUESTION FOR DESCRIPTIVE ANSWER|4 Videos
  • UNITS AND MEASUREMENT

    AAKASH SERIES|Exercise Practice Exercise|45 Videos

Similar Questions

Explore conceptually related problems

Do all fuels produce same amount of heat when they are burnt?

Two wires of same length and material but with radii 0.1 mm and 0.2mm are loaded with the same weight. Then

Two Brass rods of same length but with different diameters are heated by equal amounts of heat. The expansion is

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 rods of different materials are clamped at their ends rigidly. When they are heated for the same rise in temperature, same thermal stresses are produced in them. If their Young.s modulii are in the ratio x:y then ratio of coefficients of their linear expansion is

Two wires A and B of same length and same material, have their cross sectional areas in the ratio 1:4. What would be the ratio of heat produced in these wires when the voltage across each is constant?

Two cylindrical conductors A and b of same metallic material have their diameters in the ratio 1 : 2 and lengths in the ratio 2 : 1 . If the temperature difference between their ends is same , the ratio of heats conducted respectivelty by A and B per sec is

AAKASH SERIES-TRANSMISSION OF HEAT-ADDITIONAL PRACTICE EXERCISE (LEVEL-I (MAIN)) Straight Objective Type Questions
  1. In a 10 metre deep lake, the bottom is at a constant temperature of 4^...

    Text Solution

    |

  2. A and B are two points on a uniform metal ring whose centre is C. The ...

    Text Solution

    |

  3. Heat is flowing through two cylindrical rods of the same material. The...

    Text Solution

    |

  4. In natural convection, a heated portion of a liquid moves because

    Text Solution

    |

  5. It is hotter over top of the fire than at same distance on the sides d...

    Text Solution

    |

  6. Ventilation are provided at the top of room

    Text Solution

    |

  7. While measuring the thermal conductivity of a liquid we keep the upper...

    Text Solution

    |

  8. A slab of ice is one half covered with black cloth and the other half ...

    Text Solution

    |

  9. Two rods of same length and material transfer a given amount of heat i...

    Text Solution

    |

  10. Two rods of same length and areas of cross-section A(1) and A(2) have ...

    Text Solution

    |

  11. A body cools from 80^(0) C to 60^(0) C in 2 minutes. In how much time ...

    Text Solution

    |

  12. A 100 watt bulb operates at 3000K. Assuming it loses energy only by ra...

    Text Solution

    |

  13. The filament of a 60 watt electric light bulb of diameter 0.06 mm runs...

    Text Solution

    |

  14. A body with an initial temperature theta, is allowed to cool in a surr...

    Text Solution

    |

  15. A black body is at a temperature of 2880 K. The energy of radiation em...

    Text Solution

    |

  16. The power radiated by a black body is P, and it radiates maximum energ...

    Text Solution

    |

  17. A planet is at an average distance d from the sun, and its average sur...

    Text Solution

    |

  18. The temperature of an isolated black body falls from T(1) to T(2) in t...

    Text Solution

    |

  19. A block of metal is heated to a temperature much higher than the room ...

    Text Solution

    |