Home
Class 12
PHYSICS
A body cools from 60^@C to 50^@C in 10...

A body cools from `60^@`C to `50^@`C in 10 min. Find its temperature at the end of next 10 min if the room temperature is `25^@C`. Assume Newton's law of cooling holds.

A

`38.5^(@)"C"`

B

`40^(@)"C"`

C

`42.85^(@)"C"`

D

`45^(@)"C"`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

A body takes 5 minutes to cool from 75^0 C to 65^0 C . Find the temperature in the next 5 minutes, if the room temperature is 25^0 C .

A hot body at 70^@C cools to 25^@ C in 15 min . Find its temperature after the next 10 mins. The temperature of the surroundings is 10^@C .

A body cools in 7 minutes from 60^(@)C to 40^(@)C . What will be its temperature after the next 7 minutes? The temperature of the surrounding is 10^(@)C . Assume that Newton's law of cooling holds good throughout the process.

A body cools in 7 min from 60^@C to 40^@C What will be its temperature after the next 7 min? The temperature of surroundings is 10^@C .

A body cools from 60^(@)C to 50^(@)C in 10 minutes when kept in air at 30^(@)C . In the next 10 minut es its temperature will be

A body cools from 60^(@)C to 50^(@)C in 10 minutes . If the room temperature is 25^(@)C and assuming Newton's law of cooling to hold good, the temperature of the body at the end of the next 10 minutes will be

A body cools from 50^(@)C to 46^(@)C in 5 min and to 40^(@)C in the next 10 min. then the temperature of the surrounding is

A body cools from 50^(@)C to 46^(@)C in 5 minutes and to 40^(@)C in the next 10 minutes. The surrounding temperature is :

A body cools from 60°C to 50°C in 9 minutes. What will be the temperature after next 9 minutes? [Temperature of surrounding is 20°C ]

DISHA-HEAT TRANSFER AND NEWTONS LAW OF COOLING-physics
  1. A solid copper sphere (density rho and specific heat c) of radius r at...

    Text Solution

    |

  2. Four rods of identical cross-sectional area and made from the same met...

    Text Solution

    |

  3. Consider two hot bodies B(1) and B(2) which have temperature 100^(@)"C...

    Text Solution

    |

  4. A body cools from 60^@C to 50^@C in 10 min. Find its temperature at ...

    Text Solution

    |

  5. The rates of cooling of two different liquids put in exactly similar c...

    Text Solution

    |

  6. For cooking the food, which of the following type of utensil is most s...

    Text Solution

    |

  7. Two rods A and B are of equal lengths. Their ends of kept between the ...

    Text Solution

    |

  8. While measuring the thermal conductivity of liquids the upper part is ...

    Text Solution

    |

  9. When fluids are heated from the bottom, convection currents are produc...

    Text Solution

    |

  10. If between wavelength lambda andlambda + dlambda, e(lambda) and a(lamb...

    Text Solution

    |

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

    Text Solution

    |

  12. Two bodies A and B have thermal emissivities of 0.01 and 0.81 respecti...

    Text Solution

    |

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

    Text Solution

    |

  14. The rate of loss of heat from a body cooling under conditions of force...

    Text Solution

    |

  15. A brass ball of mass 100g is heated to 100^(@)"C" and then dropped int...

    Text Solution

    |

  16. A brass ball of mass 100g is heated to 100^(@)"C" and then dropped int...

    Text Solution

    |

  17. A brass ball of mass 100g is heated to 100^(@)"C" and then dropped int...

    Text Solution

    |

  18. Assertion : The equivalent thermal conductivity of two plates of same ...

    Text Solution

    |

  19. Assertion : Coefficient of absorption of radiation of an ideal black ...

    Text Solution

    |

  20. Statement-1 : As temperature of a black body is raised, wavelenght cor...

    Text Solution

    |