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VMMC VMMC Medical Solved Paper-2010

  • question_answer
    According to Newtons law of cooling, the rate of cooling of a body is proportional to\[{{\left( \Delta \theta  \right)}^{n}}\], where \[\Delta \theta \]is the difference of the temperature of the body and the surroundings and n is equal to

    A)  2                            

    B)         3                            

    C)         4                            

    D)         1

    Correct Answer: D

    Solution :

    According to Newtons law of cooling \[\frac{dQ}{dt}\propto \Delta \theta \] But         \[\frac{dQ}{dt}\propto {{(\Delta \theta )}^{n}}\]                               (given) \[\therefore \]  \[n=1\]


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