Question

Find the SI unit of the following derived quantities :

Pressure

• A. Pascal
• B. Newton
• C. Kg
• D. length

Answer 1

The correct option is A Pascal

Given pressure $=\frac{Force}{Area}$
$\therefore$ MKS unit of pressure $=\frac{S.I.unitofforce}{S.I.unitofarea}=\frac{kgm{s}^{-2}}{m^2}$
$=\frac{kg.m}{m^2.s^2}=\frac{kg}{m.s^2}$
$\therefore$ MKS unit of pressure $=kg{m}^{-1}{s}^{-2}$
SI unit of pressure is pascal.