If \(\frac{{dp}}{{dx}}\) is the pressure gradient and the \(\frac{{dv}}{{dx}}\) velocity gradient in a fluid flow, then the separation of boundary layer occurs the conditions are:
1
\(dp/dx>0;dv/dx>0\)
2
\(dp/dx<0;dv/dx<0\)
3
\(dp/dx>0;dv/dx<0\)
4
\(dp/dx<0;dv/dx>0\)