Home
Class 11
PHYSICS
Two rods (one semi-circular and other st...

Two rods (one semi-circular and other straight) of same material and of same cross-sectional area are joined as shown in the figure. The point A and B are maintained at different temperature. Find the ratio of the heat transferred through a cross-section of a semi-circular rod to the heat transferred through a cross section of the straight rod in a given time.

A

`2 : pi`

B

`1 : 2`

C

`pi : 2`

D

`3 : 2`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • TRANSMISSION OF HEAT

    ERRORLESS |Exercise Graphical Questions|17 Videos

  • TRANSMISSION OF HEAT

    ERRORLESS |Exercise Assertion & Reason|24 Videos

  • TRANSMISSION OF HEAT

    ERRORLESS |Exercise Radiation (Newton s Law of Cooling)|37 Videos

  • THERMOMETRY, THERMAL EXPANSION AND CALORIMETRY

    ERRORLESS |Exercise Self Evaluation Test|15 Videos

  • UNITS, DIMENSION & MEASUREMENTS

    ERRORLESS |Exercise All Questions|333 Videos

Similar Questions

Explore conceptually related problems

A semicircular rods is joined at its end to a straight rod of the same material and the same cross-sectional area. The straight rod formss a diameter of the other rod. The junction are maintaine dat different temperature. Find the ratio of the heat transffered through a cross section of the straigh rod in a given time.

Two rods one is semi circular of thermal conductivity K_(1) and otheir is straight of thermal conductivity K_(2) and of same cross sectional area are joined as shown in the The points A and B are maintained at same temperature difference. If rate of flow of heat is same in two rods then K_(1)//K_(2) is .

Three rods of same material and of equal cross sectional area and length have been connected together as shown in the figure. The temperature of the junction of the rods approximately is

A metal rod of length 2 m has cross sectional areas 2 A and A as shown in figure. The ends are maintained at temperatures 100° C and 70° C . The temperature at middle point C is

Three rods are made from the same material and having the same cross-sectional area and length have been joined as shown in the figure. The left end and right end are kept 0^@C and 100^@C , respectively . The temperature of the junction of three rods will be

Two rods of different materials having differnet lengths and same cross sectional areas are joined end to end in a straight line. The free ends of this compound rod are maintained at different temperatures The temperature gradient in each rod will be .

Three rods A, B and C of the same length and cross- sectional area are joined in series as shown. The temperature at the junction of A and B , in equilibriu, is

Three conducting rods of same material and cross-section are shown in figure. Temperatures of A,D and C are maintained at 20^(@)C, 90^(@)C and 0^(@)C . The ratio of lengths BD and BC if there is no heat flow in AB is

ERRORLESS -TRANSMISSION OF HEAT-Critical Thinking
  1. Two rods (one semi-circular and other straight) of same material and o...

    Text Solution

    |

  2. A wall has two layers A and B each made of different materials. Both t...

    Text Solution

    |

  3. Ice starts forming in lake with water at 0^(@)C and when the atmospher...

    Text Solution

    |

  4. A cylinder of radius R made of a material of thermal conductivity K(1)...

    Text Solution

    |

  5. Three rods made of the same material and having the same cross-section...

    Text Solution

    |

  6. A room at 20^@C is heated by a heater of resistence 20 ohm connected t...

    Text Solution

    |

  7. There is formation of layer of snow x cm thick on water, when the temp...

    Text Solution

    |

  8. A composite metal bar of uniform section is made up of length 25 cm of...

    Text Solution

    |

  9. Three rods of identical cross-sectional area and made from the same me...

    Text Solution

    |

  10. The only possibility of heat flow in a thermos flask is through its co...

    Text Solution

    |

  11. A sphere a cube and thin circular plate, all made of the same material...

    Text Solution

    |

  12. Two identical conducting rods are first connected independently to two...

    Text Solution

    |

  13. A solid cube and a solid sphere of the same material have equal surfac...

    Text Solution

    |

  14. Two bodies A and B have thermal emissivities of 0.01 and 0.81 respecti...

    Text Solution

    |

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

    Text Solution

    |

  16. A black metal foil is warmed by radiation from a small sphere at tempe...

    Text Solution

    |

  17. Three rods of same dimensions are arranged as shown in Fig. They have ...

    Text Solution

    |

  18. Two metallic spheres S1 and S2 are made of the same material and have ...

    Text Solution

    |

  19. Three discs, A, B and C having radii 2m, 4m and6m respectively are coa...

    Text Solution

    |

  20. The total energy radiated from a block body source at constant tempera...

    Text Solution

    |