Consider the following statements pertaining to boundary layer on a flat plate:
1. The thickness of laminar boundary layer at a distance x from the leading edge varies as x1/2
2. The thickness of turbulent boundary layer at a distance x from the leading edge varies as x4/5
3. Boundary layer is laminar when Reynolds number is less than 5 x 105
Which of the above statements are correct?1
1, 2 and 3
2
1 and 2 only
3
1 and 3 only
4
2 and 3 only