Home
Class 11
PHYSICS
A body cools from 50°C to 40°C in 5 min...

A body cools from 50°C to 40°C in 5 min .Its temperature comes down to 33.3°C in next 5 min .the temperature of surrounding is

A

15°C

B

20°C

C

25°C

D

10°C

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • THERMAL PROPERTIES OF MATTER

    BINA LIBRARY|Exercise EXERCISE|119 Videos

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    BINA LIBRARY|Exercise EXERCISE|61 Videos

  • THERMODYNAMICS

    BINA LIBRARY|Exercise EXERCISE |59 Videos

Similar Questions

Explore conceptually related problems

A liquid cools from 60℃ to 40℃ in 10 minute what is the temperature of liquid in next 10 minute where temperature is surrounding in 5℃

A body cools from 60°C to 50°C in 10 min.if room temperature is 25°C ,the temperature of the body at the end of next 10 min will be

A body cools from 80°C to 50°C in 5 minutes.If the temperature of the surrounding is 20°C ,Calculate the time it takes to cool from 60°C to 30°C .

A carnot's engine has an efficiency of 50% when its sinks temperature is 27 degree C what must be the change in its source temperature for increasing its efficiency of 60% ?

A faulty thermometer has its fixed points marked as 5^@C and 95^@C . Temperature of a body as measured by it is 59^@C . Find the correct temperature of the body in ^@C .

An electric heater takes 15 min to raise a certain quantity of water from 0°C to its boiling point.If it takes another 80 min to turn all water into steam ,find the latent heat of vaporsation of water.

In an experiment on the specific heat of a metal, a 0.20 kg block of the metal at 150^@C is dropped in a copper calorimeter (of water equivalent 0.025 kg) containing 1-50 cm^3 of water at 27^@C . The final temperature is 40^@C . Compute the specific heat of the metal. If heat losses to the surroundings are not negligible, is your answer greater or smaller than the actual value for specific heat of the metal?

A glass container of volumn 200cm^3 is full of mercury at 20°C .the temperature is raised to 100°C.Find how much mercury will be going out of the container.Given that cubical expansion of glass gamma_g=12*10^-5/°C ,cubical expansion Hg gamma_g=18*10^-4/°C .

A steel tape 1m long is correctly calibrated for a temperature of 27.0 ^@C . The length of a steel rod measured by this tape is found to be 63.0 cm on a hot day when the temperature is 45.0 ^@C . What is the actual length of the steel rod on that day? What Is the length of the same steel rod on a day when the temperature is 27.0 ^@C ? Coefficient of linear expansion of steel = 1.20xx10^-5 K^-1 .

the temperature of a gas is raised from 27^0 C to 927^0 C.The r.m.s molecular speed is

BINA LIBRARY-THERMAL PROPERTIES OF MATTER -EXERCISE
  1. Two spheres made of same meterial have radii in the ratio 1:2 both are...

    Text Solution

    |

  2. A body cools from 60°C to 50°C in 10 min.if room temperature is 25°C...

    Text Solution

    |

  3. A body cools from 50°C to 40°C in 5 min .Its temperature comes down t...

    Text Solution

    |

  4. There is a small hole at the centre of meta disc.On heating the size o...

    Text Solution

    |

  5. If a bimetallic strip made of iron and copper is heated ,then

    Text Solution

    |

  6. Which of the following is a correct relation for soilds?

    Text Solution

    |

  7. Sometimes ,a cycle with well inflated tyres left in sun,has its tube b...

    Text Solution

    |

  8. Two spheres of same size are made of same metal but one is hollow and ...

    Text Solution

    |

  9. Which of the following has the highest specific heat capacity?

    Text Solution

    |

  10. Water is used in hot water bottels,because

    Text Solution

    |

  11. For a gram-molecule of an ideal gas (PV)/T is

    Text Solution

    |

  12. Water equivalent of a substance is equal to

    Text Solution

    |

  13. The unit of thermal capacity is

    Text Solution

    |

  14. Specific heat of body depends upon

    Text Solution

    |

  15. The specific heat of water is

    Text Solution

    |

  16. The water equivalent of a block of solid mass 200 g and of specific he...

    Text Solution

    |

  17. With rise of pressure,the boiling point of a liquid

    Text Solution

    |

  18. With increase in pressure ,the melting point of substance which contra...

    Text Solution

    |

  19. A closed bottle containig water 30°C is carried to the moon in sa spac...

    Text Solution

    |

  20. The ventilation of building is necessary for

    Text Solution

    |