The S.I unit of atmospheric pressure is :
The atmospheric pressure is usually measured in the unit of : (a) newtons per square metre (b) Pascal (c) cm of mercury (d) mm of mercury
The S.I. unit of pressure is : (a) N cm−2 (b) Pa (c) N (d) N m2
what is the difference between n/m2 and pascal(p)?and what is the SI unit of pressure?