What is compressibility ? Write its formula, unit and dimensional formula.

Explanation

The reciprocal of the bulk modulus is called compressibility. It is denoted by k.
It is also defined as the fractional chanage in volume per unit increase in pressure.
`k = ((1)/(B)) = (-1)/(Delta p) xx ((Delta V)/(V)) =- (Delta V//V)/( Delta p ) `
Its unit is `N^(-1) m ^(2) or Pa ^(-1)` and dimensional formula `[M^(-1) L ^(1) T ^(2)]`