Home
Class 11
PHYSICS
A liquid takes 5 minutes to cool from 80...

A liquid takes 5 minutes to cool from `80^@C` to` 50^@C` . How much time will it take to cool from `60^@C` to `30^@C`? The temperature of surroundings is `20^@C`.

A

40 minutes

B

9 minutes

C

30 minutes

D

20 minutes

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • TRANSMISSION OF HEAT

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

    ERRORLESS |Exercise Graphical Questions|17 Videos
  • TRANSMISSION OF HEAT

    ERRORLESS |Exercise Radiation (Stefan s law)|56 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 body cools from 80^(@)C to 50^(@)C in 5 min-utes Calculate the time it takes to cool from 60^(@)C to 30^(@)C The temperature of the surroundings is 20^(@)C .

A body cools from 90^@C to 80^@C in 2 minutes. How long will it take to cool from 70^@C to 50^@C if temperature of surroundings is 16^@C ?

A hot liquid takes 10 minute to cool from 70^(@)C to 60^(@)C . The time taken by the liquid to cool from 60^(@)C to 50^(@)C is

If a body takes 6 minutes to cool from 80°C to 70°C, how long will it take to cool from 60°C to 50°C, if the surrounding temperature is 25°C?

A hot body obeying Newton's law of cooling is cooling down from its peak value 80^@C to an ambient temperature of 30^@C . It takes 5 minutes in cooling down from 80^@C to 40^@C . How much time will it take to cool down from 62^@C to 32^@C ? (Given In 2 = 0.693, In 5 = 1.609)

A body cools from 50^@C to 49^@C in 5 s. How long will it take to cool from 40^@C to 39.5^@C ? Assume the temperature of surroundings to be 30^@C and Newton's law of cooling to be valid:

A body cools from 50.0^(@)C to 48^(@)C in 5s. How long will it take to cool from 40.0^(@)C to 39^(@)C ? Assume the temperature of surroundings to be 30.0^(@)C and Newton's law of cooling to be valid.

ERRORLESS -TRANSMISSION OF HEAT-Radiation (Newton s Law of Cooling)
  1. A body cools from 50^@C to 49^@C in 5 s. How long will it take to cool...

    Text Solution

    |

  2. A container contains hot water at 100^(@)C. If in time T(1) temperatur...

    Text Solution

    |

  3. Hot water kept in a beaker placed in a room cools from 70^(@)C to 60°...

    Text Solution

    |

  4. Newton’s law of cooling, holds good only if the temperature difference...

    Text Solution

    |

  5. In a room where the temperature is 30^(@)C, a body cools from 61^(@)C ...

    Text Solution

    |

  6. According to ‘Newton’s Law of cooling’, the rate of cooling of a body ...

    Text Solution

    |

  7. A body cools in 7 minutes from 60^(@)C to 40^(@)C What time (in minut...

    Text Solution

    |

  8. A body takes 5 minutes for cooling from 50^(@)C to 40^(@)C Its temp...

    Text Solution

    |

  9. The temperature of a body falls from 50^(@)C to 40^(@)C in 10 minute...

    Text Solution

    |

  10. It takes 10 minutes to cool a liquid from 61^(@)C to 59^(@)C. If room ...

    Text Solution

    |

  11. A calorimeter of mass 0.2 kg and specific heat 900 J//kg-K. Containing...

    Text Solution

    |

  12. According to Newton's law of cooling, the rate of cooling of a body is...

    Text Solution

    |

  13. A body initially at 80^(@)C cools to 64^(@)C in 5 minutes and to 52^(@...

    Text Solution

    |

  14. A liquid cools from 50^(@)C to 45^(@)C in 5 minutes and from 45^(@)C ...

    Text Solution

    |

  15. A cup of tea cools from 65.5^@C to 62.55^@C in one minute in a room at...

    Text Solution

    |

  16. A body takes 10 min to cool douwn from 62^@C to 50^@C. If the temperat...

    Text Solution

    |

  17. A body takes 5 minutes to cool from 90^(@)C to 60^(@)C . If the temper...

    Text Solution

    |

  18. A body is cooled in 2 min n a room at temperature of 30^@C from 75^@C ...

    Text Solution

    |

  19. A liquid takes 5 minutes to cool from 80^@C to 50^@C . How much time w...

    Text Solution

    |

  20. A cane is taken out from a refrigerator at 0^(@)"C". The atmospheric t...

    Text Solution

    |