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NEET NEET SOLVED PAPER 2017

  • question_answer
    The bulk modulus of a spherical object is 'B'. If it is subjected to uniform pressure 'p' , the fractional decrease in radius is                                                                                                                                                               

    A) \[\frac{\rho }{3B}\]                                        

    B) \[\frac{\rho }{B}\]

    C) \[\frac{B}{3p}\]                                

    D)   \[\frac{3p}{B}\]

    Correct Answer: A

    Solution :

                                    \[B=\frac{p}{\left( \frac{\Delta V}{V} \right)}\]                 \[\frac{\Delta V}{V}=\frac{p}{B}\]                 \[3\frac{\Delta r}{r}=\frac{p}{B}\]                 \[\frac{\Delta r}{r}=\frac{p}{3B}\]


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