Change in boundary layer from laminar to turbulent is directly affected by
(i) Roughness of plate
(ii) Pressure gradient
(iii) Intensity of turbulence
(iv) Velocity of flow
Which of the above-mentioned option(s) is/are incorrect?
1
(i) and (iii)
2
(ii) and (iv)
3
Only (iii)
4
Only (iv)