Q 11-08-058JEE MainJEE Main 2023 (13 Apr, Shift 1)Easy
Under isothermal condition, the pressure of a gas is given by $P=aV^{-3}$, where $a$ is a constant and $V$ is the volume of the gas. The bulk modulus at constant temperature is equal to
Answer: (A) $3P$
$B=-V\dfrac{dP}{dV}=-V(-3aV^{-4})=3aV^{-3}=3P$.
Solution by Sreeraj P, M.Sc Physics