Question

What is the bulk modulus of elasticity?

Answer 1

1. The bulk modulus of elasticity can be defined as the ratio of pressure applied to the corresponding relative decrease in the volume of the material.
2. The mathematical relation of Bulk modulus
   $\mathrm{B}=\frac{∆\mathrm{p}}{{\displaystyle \frac{∆\mathrm{V}}{\mathrm{V}}}}$
   Where, $\mathrm{B}$ represents Bulk modulus, $∆\mathrm{p}$ represents the change of the pressure or force applied per unit area on the material, $∆\mathrm{V}$ represents the change of the volume of the material due to the compression, and $\mathrm{V}$ represents the Initial volume of the material.
3. A bulk modulus is nothing but a numerical constant that is used to measure and describe the elastic properties of a solid or fluid when pressure is applied on all the surfaces.