AIIMS 2018 Physics Bulk Modulus MCQ Question

Option A is correct because it accurately represents the relationship defined by the Bulk modulus $B$, which is given by the formula $B = \frac{p}{\frac{\Delta V}{V}}$. Here, substituting the value of hydraulic pressure $p = 10 \times 1.013 \times 10^5 \, \text{Pa}$ confirms that $B$ equals $37 \times 10^9 \, \text{Pa}$ when $\frac{\Delta V}{V}$ is appropriately calculated.

Options B and C are not relevant in this context; while B attempts to provide a value for $\frac{\Delta V}{V}$, it lacks the necessary context to validate its correctness without further calculations or information. Option C is simply not applicable. Understanding the Bulk modulus is crucial as it quantifies a material's resistance to uniform compression, which is essential in fields such as fluid mechanics and material science.