Home
Class 11
PHYSICS
A sphere at temperature 600 K is placed ...

A sphere at temperature `600 K` is placed in an enviroment to temperature is `200 K`. Its cooling rate is `H`. If its temperature reduced to `400 K` then cooling rate in same enviorment will become

A

`(3//16) H`

B

`(16//3)H`

C

`(9//27)H`

D

`(1//16)H`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • TRANSMISSION OF HEAT

    ERRORLESS |Exercise Radiation (Newton s Law of Cooling)|37 Videos
  • TRANSMISSION OF HEAT

    ERRORLESS |Exercise Critical Thinking|36 Videos
  • TRANSMISSION OF HEAT

    ERRORLESS |Exercise Radiation (Wein s law)|30 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

Si and Cu are cooled to a temperature of 300 K , then resistivity

Intial temperature of a gas is 300 K & its gamma = 1.5 if adibatically its temperature reduced to 100 K, what will be effect on its volume & pressure.

The rate of cooling at 600 K . If surrounding temperature is 300 K is H . The rate of cooling at 900 K is

The rate of cooling at 600 K, if surrounding temperature is 300 K is R. The rate of cooling at 900 K is

An engine runs between a reservoir at temperature 200 K and a hot body which is initially at temperature of 600 K. If the hot body cools down to a temperature of 400 K in the process, then the maximum amount of work that the engine can do (while working in a cycle) is (the heat capacity of the hot body is 1 J/K)

If the initial temperatures of metallic sphere and disc, of the same mass, radius and nature are equal, then the ratio of their rate of cooling in same environment will be

ERRORLESS -TRANSMISSION OF HEAT-Radiation (Stefan s law)
  1. Two spheres of same material have radius 1 m and 4 m and temperature 4...

    Text Solution

    |

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

    Text Solution

    |

  3. A black body radiates at the of W watts at a temperture T. If the temp...

    Text Solution

    |

  4. Star A has radius r surface temperature T while star B has radius 4 r ...

    Text Solution

    |

  5. Suppose the sun expands so that its radius becomes 100 times its prese...

    Text Solution

    |

  6. If the temperature of the sun were to increase form T to 2T and its ra...

    Text Solution

    |

  7. At 127^(@)C radiates energy is 2.7 xx 10 J//s. At what temperature rad...

    Text Solution

    |

  8. If the initial temperatures of metallic sphere and disc, of the same m...

    Text Solution

    |

  9. A black body radiates energy at the rate of 1 xx 10 J // s xx m at tem...

    Text Solution

    |

  10. The temperature of a body is increased from –73°C to 327°C. Then the r...

    Text Solution

    |

  11. If the temperature of the body is increased by 10%, the percentage inc...

    Text Solution

    |

  12. If the sun's surface radiates heat at 6.3 xx 10^(7) Wm^(-2). Calculate...

    Text Solution

    |

  13. A sphere at temperature 600 K is placed in an enviroment to temperatur...

    Text Solution

    |

  14. The value of Stefan's constant is

    Text Solution

    |

  15. The rate of cooling at 600 K, if surrounding temperature is 300 K is R...

    Text Solution

    |

  16. A blackbody of surface area 10cm^(2) is heated to 127^(@)C and is sus...

    Text Solution

    |

  17. Two identical objects A and B are at temperature T(A) and T(B) respect...

    Text Solution

    |

  18. When a body has the same temperature as that of its surroundings

    Text Solution

    |

  19. The ratio of radiant energies radiated per unit surface area by two bo...

    Text Solution

    |

  20. The spectral energy distribution of star is maximum at twice temperatu...

    Text Solution

    |