The bulk modulus of a sphericaI object is B. lf it is subjected to , uniform pressure 'p' , the fractional decrease in radius is

Question

$\begin{array}{1 1} (1) \frac{P}{B} \\ (2) \frac{B}{3p} \\ (3) \frac{3p}{B} \\ (4) \frac{P}{3B} \end{array}$