Question

Define pressure and write its SI unit.

Answer 1

1. Pressure:- The thrust on the unit surface area is called pressure.
2. Alternately, a force acting per unit area of a surface acting in a direction normal(or perpendicular) to it is called pressure.
3. It's SI unit is $\raisebox{1ex}{$N$}\!\left/ \!\raisebox{-1ex}{$m^2$}\right.$.