Question

The bulk modulus for an incompressible liquid is

• A. Zero
• B. Unity
• C. Infinity
• D. Between $0$ and $1$

Answer 1

The correct option is C Infinity

We know that, Bulk modulus
$B=\frac{-dP}{\frac{dV}{V}}$
As liquid is incompressible, $dV=0$
$\Rightarrow \beta =\frac{-dP}{0}=\infty$
So, Bulk modulus for an incompressible liquid is infinity.