Home
Class 11
PHYSICS
In Newton's law of cooling (d theta)/(dt...

In Newton's law of cooling `(d theta)/(dt)=-k(theta-theta_(0))` the constant `k` is proportional to .

A

A: surface of the body

B

S in the specific heat of the body

C

`(1)/(m)` being the mass of the body

D

e is the emissivity of the body

Text Solution

Verified by Experts

The correct Answer is:
A, C
Promotional Banner

Topper's Solved these Questions

  • TRANSMISSION OF HEAT

    NARAYNA|Exercise LEVEL-I(H.W)|19 Videos
  • TRANSMISSION OF HEAT

    NARAYNA|Exercise LEVEL-II(C.W)|27 Videos
  • TRANSMISSION OF HEAT

    NARAYNA|Exercise SINGLE ANSWER QUESTIONS Passage -1|1 Videos
  • THERMODYNAMICS

    NARAYNA|Exercise Exercise|187 Videos
  • UNITS AND MEASUREMENTS

    NARAYNA|Exercise STATEMENT TYPE QUESTION|23 Videos

Similar Questions

Explore conceptually related problems

A hot body placed in a surrounding of temperature theta_(0) obeys Newton's law of cooling (d theta)/(dt)=-k(theta-theta_(0)) . Its temperature at t=0 is theta_(1) the specific heat capacity of the body is s and its mass is m. Find (a) the maximum heat that the body can lose and (b) the time starting from t=0 in which it will lose 90% of this maximum heat.

The solution of the differential equation (d theta)/(dt)=-k(theta-theta_(0)) where k is constant, is . . . .

In newton's law of cooling in the form (dDeltatheta)/(dt)=-kDeltatheta What factors does the constant k depend upon? What are the dimensions of k?

According to Newton's law of cooling, the rate of cooling of a body is proportional to (Delta theta)^n , where Delta theta is the difference of the temperature of the body and the surroundings, and n is equal to

Ac cording to Newton's law of cooling, the rate of cooling of a body is proportional to (Delta theta)^(n) , where Delta theta is the difference of the temperature of the body and thae surrounding. What is the value of n out of 4,3,2,and 1?

A liquid in a beaker has temperature theta(t) at time t and theta_0 is temperature of surroundings, then according to Newton's law of cooling the correct graph between log_e( theta-theta_0) and t is :

NARAYNA-TRANSMISSION OF HEAT-SINGLE ANSWER QUESTIONS
  1. An irregular rod of same uniform material as shown in is conducting he...

    Text Solution

    |

  2. A solid copper sphere of dimater 10mm is cooled to temperature of 150K...

    Text Solution

    |

  3. The temperature across two different slabs A and B are shown I the ste...

    Text Solution

    |

  4. The temperature drop through a two layer furnace wall is 900^@C. Each ...

    Text Solution

    |

  5. Seven identical rods of matrical of thermal conductivity k are connect...

    Text Solution

    |

  6. A composite block is made of slabs A,B,C,D and E of different thermal ...

    Text Solution

    |

  7. In Newton's law of cooling (d theta)/(dt)=-k(theta-theta(0)) the const...

    Text Solution

    |

  8. Consider a spherical body A of radius R which is placed concentrically...

    Text Solution

    |

  9. Consider a spherical body A of radius R which is placed concentrically...

    Text Solution

    |

  10. Consider a spherical body A of radius R which is placed concentrically...

    Text Solution

    |

  11. A highly conducting solid sphere of radius R density rho and specific ...

    Text Solution

    |

  12. A highly conducting solid sphere of radius R density rho and specific ...

    Text Solution

    |

  13. A few rods of materials X and Y are connected as shown in The cross-se...

    Text Solution

    |

  14. A hot body placed in air is cooled down according to newton's law of c...

    Text Solution

    |

  15. One end of a uniform rod of length 1m is placed in boilling water whil...

    Text Solution

    |

  16. Two identical rods are connected between two containers. One of them i...

    Text Solution

    |

  17. A metal rod AB of length 10x has its one end A in ice at 0^@C, and the...

    Text Solution

    |

  18. A metal is heated in a furnace where a sensor is kept above the metal ...

    Text Solution

    |

  19. The distance of the Earth from the Sun is 4 times that of the planet M...

    Text Solution

    |

  20. A metal block is placed in a room which is at 10^(@)C for long time. N...

    Text Solution

    |