Home
Class 11
PHYSICS
A liquid in a beaker has temperature the...

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 :

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
A

(1) `log_(e) (theta = theta_(0)) = log_(e) (theta_(i) = theta_(0)) - kt`
`log_(e) (theta - theta_(0)) v//s t` will be straight line of negative slope and positive intercept
Promotional Banner

Topper's Solved these Questions

  • HEAT TRANSFER

    CP SINGH|Exercise Exercises|94 Videos
  • HEAT AND CALORIMETRY

    CP SINGH|Exercise Exercise|37 Videos
  • KINETIC THEORY OF GASES

    CP SINGH|Exercise Exercises|79 Videos

Similar Questions

Explore conceptually related problems

The correct curve between log_(e) R and log_(e) (theta - theta_(o) ) is -

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

The correct graph between the temperature of a hot body kept in cooler surrounding and time is (Assume newton's law of cooling)

Themperature of a body theta is slightly more than the temperature of the surrounding theta_(0) its rate of cooling (R ) versus temperature of body (theta) is plotted its shape would be .

Instantaneous temperature difference between cooling body and the surroundings obeying Newton's law of cooling is theta . Which of the following represents the variation of In theta with time t?

A body cools in a surrounding which is at a constant temperature of theta_(0) Assume that it obeys Newton's law of cooling Its temperature theta is plotted against time t Tangents are drawn to the curve at the points P (theta =theta_(1)) and Q(theta =theta_(2)) These tangents meet the time axis at angle of phi_(2) and phi_(1) as shown .

CP SINGH-HEAT TRANSFER-Exercises
  1. Assuming the Sun to be a spherical body of radius R at a temperature o...

    Text Solution

    |

  2. The sun radiates energy in all directions. The average radiations rece...

    Text Solution

    |

  3. Newton's law of cooling is a special case of .

    Text Solution

    |

  4. A body cools from 50^(@)C to 40^(@)C in 5 min. The surroundings temper...

    Text Solution

    |

  5. In the previous question will be its temperature 5 min after reaching ...

    Text Solution

    |

  6. A body with an initial temperature theta(1) is allowed to cool in a su...

    Text Solution

    |

  7. A hot liquid is kept in a big room. Its temperature is plotted as a fu...

    Text Solution

    |

  8. A liquid in a beaker has temperature theta(t) at time t and theta0 is ...

    Text Solution

    |

  9. A hot liquid is kept in a big room. The logarithm of the numerical val...

    Text Solution

    |

  10. Two solid spheres of radii R(1) and R(2) are made of the same material...

    Text Solution

    |

  11. In previous problem, the ratio of the initial rates of cooling (i.e., ...

    Text Solution

    |

  12. Relation between the colour and the temperature of a star in given by

    Text Solution

    |

  13. A black body has maximum wavelength lambda(m) at temperature 2000 K. I...

    Text Solution

    |

  14. The intensity of radiation emitted by the sun has its maximum value at...

    Text Solution

    |

  15. The plots of intensity versus wavelength for three black bodies at tem...

    Text Solution

    |

  16. A black body is at a temperature of 2800K The energy of radiation emit...

    Text Solution

    |

  17. The power radiated by a black body is P and it radiates maximum energy...

    Text Solution

    |

  18. A heater body emits radiation which has maximum intensity near the fre...

    Text Solution

    |

  19. Three discs, A, B and C having radii 2m, 4m and6m respectively are coa...

    Text Solution

    |

  20. Make the pairs {:(A.,"Thermal conductivity",(i),ML T^(-3)K^(-1)),(B....

    Text Solution

    |