Question

The ratio of hydraulic stress to the corresponding strain is known as

• A. Compressibility
• B. Bulk modulus
• C. Young's modulus
• D. Rigidity modulus

Answer 1

Answer: (B)

By Bulk modulus of elasticity,
It is defined as ratio of hydraulic stress to the corresponding the volumetric strain within the elastic limit.
$K=\frac{FV}{A\Delta V}=\frac{\Delta p\cdot V}{\Delta V}$
where, $\Delta p=\frac{F}{A}=$ change in pressure.