Bulk Modulus

Question

Bulk modulus defined as?

RankGuru · Accepted Answer

1. **Elastic Moduli**: While Young's modulus relates to linear stretching, Bulk Modulus ($B$) relates to volumetric compression.
2. **Physics**: It is the ratio of volumetric stress (excess pressure $\Delta P$) to the volumetric strain (change in volume per unit volume $\Delta V/V$).
3. **Formula**: **$B = -\frac{\Delta P}{\Delta V/V}$**.
4. **Sign**: The negative sign is included because an increase in pressure ($ΔP > 0$) causes a decrease in volume ($ΔV < 0$), making the modulus itself positive.
5. **Relation**: Compressibility ($k$) is the reciprocal of Bulk Modulus ($k = 1/B$).

Rank Guru

Bulk Modulus

Select the correct option:

Solution

🔒 Solution Hidden from View

More bulk modulus Practice Questions

Bulk modulus K represents resistance to:

About This Question