A spherical ball contracts in volume by $0.02 \%$, when subjected to a normal uniform pressure of $50$ atmosphere. The Bulk modulus of its material is ............... $N / m ^2$
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(d)
$\frac{\Delta v}{v}=-\frac{P}{B} \quad\left\{\frac{\Delta v}{v}=\frac{-0.02}{100}\right\}$
$P=50 \,atm =50 \times 1.01 \times 10^5 \,Pa$ or $N / m ^2$
So $B=50 \times 1.01 \times 10^5 \times \frac{100}{0.02}$
$=2.5 \times 10^{10} \,N / m ^2$
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