Question

The SI unit of compressibility is

• A. $m^2/N$
• B. $N{m}^2$
• C. $N/m^2$
• D. $kg/m^3$

Answer 1

The correct option is A

$m^2/N$

Explanation for correct option:

In the case of Option A:

1. Compressibility is the inverse of the bulk modulus of elasticity. The unit of bulk modulus of elasticity is Newton (N) per meter square ($m^2$).
2. So, the unit of compressibility is Meter square per Newton or $m^2/N$.

Explanation for incorrect options:

1. The SI unit of compressibility is Meter square per Newton.
2. Hence, Options B, C, and D are incorrect.

Hence Option A is correct.