BHU PMT BHU PMT (Screening) Solved Paper-2010

  • question_answer
    If\[E=at+b{{t}^{2}},\]what is the neutral temperature?

    A)  \[-\frac{a}{2b}\]                             

    B)  \[+\frac{a}{2b}\]

    C)  \[-\frac{a}{b}\]                                

    D)  \[+\frac{a}{b}\]

    Correct Answer: C

    Solution :

                     At temperature of inversion E is minimum, ie, \[E=0\] \[E=at+b{{t}^{2}}\] \[\therefore \]  \[0=a{{t}_{i}}+bt_{i}^{2}\] Or           \[{{t}_{i}}=-\frac{a}{b}\]


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