Home
Class 12
PHYSICS
If a cup of tea cools from 80°C to 72°C ...

If a cup of tea cools from 80°C to 72°C in 5 minutes and from 72 C to 66°C in the next 5 minutes, then temperature of surrounding is

A

43°C

B

46°C

C

48°C

D

50°C

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • MOCK TEST 7

    AAKASH INSTITUTE ENGLISH|Exercise Exercise|90 Videos
  • MOCK TEST 6

    AAKASH INSTITUTE ENGLISH|Exercise Example|365 Videos
  • MOCK TEST 8

    AAKASH INSTITUTE ENGLISH|Exercise Example|30 Videos

Similar Questions

Explore conceptually related problems

A liquid cools from 50^(@)C to 45^(@)C in 5 minutes and from 45^(@)C to 41.5^(@)C in the next 5 minutes. The temperature of the surrounding is

A body cools from 62^(@)C to 50^(@)C in 10 minutes and to 42^(@)C in the next 10 minutes. Find the temperature of surroundings.

Certain quantity of water cools from 70^(@)C to 60^(@)C in the first 5 minutes and to 54^(@)C in the next 5 minutes. The temperature of the surrounding is

Hot water cools from 60^@C to 50^@C in the first 10 min and to 42^@C in the next 10 min. The temperature of the surrounding is

Hot water cools from 60^@C to 50^@C in the first 10 min and to 42^@C in the next 10 min. The temperature of the surrounding is

A body cools down from 45^(@)C to 40^(@)C in 5 minutes and to 35^(@) in another 8 minutes. Find the temperature of the surrounding.

A body cools down from 50^(@)C to 45^(@)C in 5 minutes and to 40^(@)C in another 8 minutes. Find the temperature of the surrounding.

The time taken by a liquid to cool from 65^(@) C to 55^(@) C is 5 minutes and cools to 47^(@) C in the next 5 minutes, calculate the room temperature and the temperature of the body after another 5 minutes.

A body cools down from 52.5^(@) C to 47.5^(@)C in 5 min and to 42.5^(@) C in 7.5 min. Find the temperature of the surroundings.

A black body calorimeter filled with hot water cools from 60^(@)C to 50^(@)C in 4 min and 40^(@)C to 30^(@)C in 8min . The approximate temperature of surrounding is :

AAKASH INSTITUTE ENGLISH-MOCK TEST 7-Exercise
  1. A body of mass m is thrown from a he equal to radius of earth (A) from...

    Text Solution

    |

  2. Let the sun contracts due to self-gravity and it becomes a black hole....

    Text Solution

    |

  3. If a cup of tea cools from 80°C to 72°C in 5 minutes and from 72 C to ...

    Text Solution

    |

  4. A wire of length is stretched by a force F to cause an extension x. An...

    Text Solution

    |

  5. A satellite revolves in a circular orbit at a height of 1.6 x 10^6 m ...

    Text Solution

    |

  6. The extra pressure required to decrease the volume of a liquid of Buik...

    Text Solution

    |

  7. A vertical U shaped tube of uniform cross-section contains mercury in ...

    Text Solution

    |

  8. Twenty seven similar mercury drops are falling through water with term...

    Text Solution

    |

  9. Weight of a solid is 250 g in air, 50 g in unknown liquid and 150 g in...

    Text Solution

    |

  10. A sample of 0.5 g water at 100°C and 1 atm pressure requires 270 cal h...

    Text Solution

    |

  11. The velocity - time (V - t) graph of an object of mass 2 kg is as show...

    Text Solution

    |

  12. Four forces are acting on a body as shown in figure. The magnitude of ...

    Text Solution

    |

  13. A mass m is connected to a massless rod of length l( and is free to ro...

    Text Solution

    |

  14. An object having kinetic energy of 50 J is moving with linear momentum...

    Text Solution

    |

  15. The tension in the cord connected to motor is 15000 N and mass of the ...

    Text Solution

    |

  16. A pump of power P ejects M kg water per second through a horizontal pi...

    Text Solution

    |

  17. Forces of equal magnitude of 0.5 N are acting on a square plate of sid...

    Text Solution

    |

  18. IF linear mass density a rod of length 2 m is changing with position a...

    Text Solution

    |

  19. Which of the following statements is correct?

    Text Solution

    |

  20. A solid and a hollow sphere are released from the top of a sufficientl...

    Text Solution

    |