Q. The pressure of a medium is changed from$\ 1.01 \times 10^{5}$ Pa to $1.165 \times 10^{5}$ Pa and change in volume is 10% keeping temperature constant. The Bulk modulus of the medium is
A) $204.8 \times 10^{5}$Pa
B) $102.4 \times 10^{5}$Pa
C) $51.2 \times 10^{5}$Pa
D) $1.55 \times 10^{5}$Pa
Explanation
(d) From the definition of Bulk modulus,
$B = - \frac{dp}{(dV/V)}$
Substituting the values we have,
$B = \frac{(1.165 - 1.01) \times 10^{5}}{\left( \frac{10}{100} \right)}$
$Pa = 1.55 \times 10^{5\ }Pa$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.