Home
Class 12
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

both the cube and the sphere cool down at the same rate.

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

  • KINETIC THEORY OF GASES AND RADIATION

    TARGET PUBLICATION|Exercise Evaluation test|18 Videos

  • KINETIC THEORY OF GASES AND RADIATION

    TARGET PUBLICATION|Exercise critical thinking|104 Videos

  • INTERFERENCE AND DIFFRACTION

    TARGET PUBLICATION|Exercise EVALUATION TEST|20 Videos

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    TARGET PUBLICATION|Exercise EVALUATION TEST|19 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

TARGET PUBLICATION-KINETIC THEORY OF GASES AND RADIATION -Competitive thinking
  1. A diatomic ideal gas is used in a Carnot engine as the working substan...

    Text Solution

    |

  2. A cylinder of fixed capacity 67 .2 litres contains helium gas at STP. ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  5. Show below are the black body radiation curves at temperature T1 and T...

    Text Solution

    |

  6. Two spheres A and B having radii 3 cm and 5 cm respectively are coated...

    Text Solution

    |

  7. A liquid in a beaker has temperature theta(t) at time t and theta0 is ...

    Text Solution

    |

  8. A gaseous mixture consists of 16g of helium and 16 g of oxygen. The ra...

    Text Solution

    |

  9. A vessel of volume V contains an ideal gas at absolute temperature T a...

    Text Solution

    |

  10. A monatomic gas at a pressure P, having a volume V expands isothermall...

    Text Solution

    |

  11. An ideal gas expands isothermally from volume V(1) to V(2) and is then...

    Text Solution

    |

  12. If a piece of metal is heated to temperature theta and the allowed to ...

    Text Solution

    |

  13. n' moles of an ideal gas undergoes a process AtoB as shown in the figu...

    Text Solution

    |

  14. The amount of heat energy required to raise the temperature of 1 g of ...

    Text Solution

    |

  15. At what temperature will the R.M.S. velocity for H2 molecule-be same a...

    Text Solution

    |

  16. At what temperature , will the rms speed of oxygen molecules be suffic...

    Text Solution

    |

  17. Aseertion: Thermodynamics process in nature are irreversible. Reason...

    Text Solution

    |

  18. Assertion : In an isolated system the entropy increases. Reason : Th...

    Text Solution

    |

  19. One mole of an ideal gas requires 207J heat to raise the temperature b...

    Text Solution

    |

  20. Consider a spherical shell of radius R at temperature T. The black bod...

    Text Solution

    |