Home
Class 12
PHYSICS
A bucket full of hot water cools from 75...

A bucket full of hot water cools from `75^(@)C` to `70^(@)C` in time `T_(1)`, from `70^(@)C` to `65^(@)C` in time `T_(2)` and from `65^(@)C` to `60^(@)C` in time `T_(3)`, then

A

`(T_1)/(T_2)`

B

`(T_2)/(T_1)`

C

`((T_1)/(T_2))^2`

D

`((T_2)/(T_1))^2`

Text Solution

Verified by Experts

The correct Answer is:
C
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 beaker full of hot water is kept in a room and it cools from 80^(@)C to 75^(@)C in t_(1) mminutes , from 75^(@)C to 65^(@)C in t_(2) minutes and from 70^(@)C to 65^(@)C in t_(3) min, then

A vessel full of hot water is kept in a room and it cools from 80^(@)C to 75^(@)C in T_(1) minutes, from 75^(@)C to 70^(@)C in T_(2) minutes and from 70^(@)C to 65^(@)C in T_(3) minutes Then .

A substance cools from 75^@C to 70^@C in T_1 minute, from 70^@C to 65^@C in T_2 minute and from 65^@C to 60^@C in T_3 minute, then.

A body cools from 70^(@)C to 60^(@)C in 8minute The same body cools from 60^(@)C to 50^(@)C in .

A bucket full of hot water is kept in a room and it cools from 75°C to 70°C in T1 minutes, from 70°C to 65°C in T_2 minutes and from 65°C to 60°C in T_3 minutes. Then –

A body cools down from 65^(@)C to 60^(@)C in 5minutes. It will cool down from 60^(@)C to 55^(@)C in

A body in a room cools from 85^(@)C to 80^(@)C in 5 minutes. Then the time taken to cool from 80^(@)C to 75^(@)C is

A body takes 4 minutes to cool from 100^(@)C to 70^(@)C . To cool from 70^(@)C to 40^(@)C it will take (room temperture os 15^(@)C )

A container contains hot water at 100^(@)C . If in time T_(1) temperature falls to 80^(@)C and in time T_(2) temperature falls to 60^(@)C from 80^(@)C , then

A liquid cools down from 70^(@)C to 60^(@)C in 5 minutes. The time taken to cool it from 60^(@)C to 50^(@)C will be

TARGET PUBLICATION-KINETIC THEORY OF GASES AND RADIATION -Competitive thinking
  1. Assertion : Perspiration from human body helps in cooling the body. ...

    Text Solution

    |

  2. Ac cording to Newton's law of cooling, the rate of cooling of a body i...

    Text Solution

    |

  3. A bucket full of hot water cools from 75^(@)C to 70^(@)C in time T(1),...

    Text Solution

    |

  4. A liquid cools from 70 °C to 60 °C in 5 minutes. If the temperature of...

    Text Solution

    |

  5. An object is cooled from 75 ^(@)Cto 65^(@)C in 2 min in a room at 30^...

    Text Solution

    |

  6. A body cools from 100° C to 70° C in 8 second. If temperature of surro...

    Text Solution

    |

  7. A body cools from a temperature 3 T to 2 T in 10 minutes. The room tem...

    Text Solution

    |

  8. Certain quantity of water cools from 70^(@)C to 60^(@)C in the first 5...

    Text Solution

    |

  9. Rate of cooling of body is 0.5^(@)C/min, when the system is 50^(@)C ab...

    Text Solution

    |

  10. Two thermometers A and B are exposed in sunlight. The bulb of A is pai...

    Text Solution

    |

  11. In a given process on an ideal gas, dW=0 and dQlt0. Then for the gas

    Text Solution

    |

  12. A perfect gas goes from state A to another state B by absorbing 8 x 10...

    Text Solution

    |

  13. A metal bar of mass 1.5 kg is heated at atmospheric pressure. Its temp...

    Text Solution

    |

  14. 100g of water is heated from 30^@C to 50^@C. Ignoring the slight expan...

    Text Solution

    |

  15. The work of 146 kJ is performed in order to compress one kilo mole of ...

    Text Solution

    |

  16. A thermally insulated vessel contains an ideal gas of molecular mass M...

    Text Solution

    |

  17. A Carnot refrigerator absorbs heat from water at O °C and gives it to ...

    Text Solution

    |

  18. A Carnot engine, having an efficiency of eta= 1/10 as heat engine, is ...

    Text Solution

    |

  19. When the absolute temperature of the source of a Carnot heat engine is...

    Text Solution

    |

  20. An ideal Carnot engine takes heat from a source at 317 °C, does some e...

    Text Solution

    |