Home
Class 11
PHYSICS
A solid cube and a solid sphere of the s...

A solid cube and a solid sphere of the same material have equal surface area. Both are at the same temperature `120^(@)C`, then

A

Both the cube and the sphere cool down at the same rate

B

The cube cools down faster than the sphere

C

The sphere cools down faster than the cube

D

Whichever is having more mass will cool down faster

Text Solution

Verified by Experts

The correct Answer is:
B
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 solid sphere and a hollow sphere of the same material and of equal radii are heated to the same temperature.

A solid sphere and a hollow sphere of the same material and of equal radii are heated to the same temperature

A solid cube and a sphere are made of the same material and both have the same surface area. If both are at the temperature of 300 K then initial

A solide sphere and a hollow sphere of the same material and of equal radii are heated to the same temperature (i) Both will emit equal amount of radiation per unit time in the beginning (ii) Both will absorb equal amount of radiation from the surrounding in the beginning (iii) The initial rate of cooling dT//dt will be same for the two spheres (iv) The two spheres will have equal temperatures at any instant

A solid sphere and a hollow sphere of the same material and size are heated to the same temperature and allowed to cool in the same surroundings. If the temperature difference between the surroundings and each sphere is T, then :

A hollow and a solid sphere of same material and identical outer surface under identical condition are heated to the same temperature at the same time (both have same e, a):

A cube and a sphere of the same material and same total surface area are placed in the sae space turn by turn, after heating them to the same temperature. Compare their initial rate of cooling in the enclosure.

Two solid spheres of radii R_(1) and R_(2) are made of the same material and have similar surfaces. These are raised to the same temperature and then allowed to cool under identical conditions. The ratio of their initial rates of loss of heat are

ERRORLESS -TRANSMISSION OF HEAT-Critical Thinking
  1. A sphere a cube and thin circular plate, all made of the same material...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  11. A solid sphere and a hollow sphere of the same material and of equal r...

    Text Solution

    |

  12. A solid copper cube of edges 1 cm is suspended in an evacuated enclosu...

    Text Solution

    |

  13. A body initially at 80^(@)" C" cools to 64^(@)" C" in 5 minutes and to...

    Text Solution

    |

  14. A 5 cm thick ice block is there on the surface of water in a lake. The...

    Text Solution

    |

  15. A square is made of four rods of same material one of the diagonal of ...

    Text Solution

    |

  16. A cylindrical rod with one end in a steam chamber and the other end in...

    Text Solution

    |

  17. One end of a copper rod of length 1.0 m and area of cross-section 10^...

    Text Solution

    |

  18. An ice box used for keeping eatables cool has a total wall area of 1m^...

    Text Solution

    |

  19. Five rods of same dimensions are arranged as shown in the figure. They...

    Text Solution

    |

  20. A hot metallic sphere of radius r radiates heat. It's rate of cooling ...

    Text Solution

    |